This PR does 4 things:
* Adds a new cmdlet `New-PSBreakpoint` which creates new `Breakpoint` objects and writes them to the pipeline
* Adds a `-Breakpoint` parameter to `Debug-Runspace` which will receive `Breakpoint` objects
* Makes the constructors for `*Breakpoint` public for use with the API
* Makes `Debugger.GetBreakpoint(string id)` and `Debugger.GetBreakpoints()` public since `SetBreakpoints` is public
Note: `New-PSBreakpoint` and `Set-PSBreakpoint` (which already exists) are similar... but `Set-PSBreakpoint` also sets the breakpoints in the _current_ runspace. This is not ideal if we want to set breakpoints in a _different runspace than the current one_.
## PR Context
The "Attach to process" debugging experience in the PowerShell extension for VSCode is _ok_ but it's not great.
The reason it's not great is due to the `BreakAll` feature of PowerShell debugging which, when you run `Debug-Runspace`, will break at the first piece of code that gets run. This is not ideal when you "Attach to process" _and then_ run your code in the other runspace.
Today, the experience drops you in `PSReadLine`'s psm1 if PSRL is available or in the vscode PowerShell helper psm1.
It's unexpected for the user and not ideal.
This PR will allow the extension to pass in the breakpoints that need to be set initially with `BreakAll` turned off for none of this silly behavior.
### Silly behavior example
If you want a repro, try this:
PowerShell instance 1:
```
Enter-PSHostProcess -Id $otherprocesspid
Debug-Runspace 1
```
PowerShell instance 2:
```
./runfoo.ps1
```
Note that you end up NOT `runfoo.ps1`
Major changes are as follows:
- Avoid `SecuritySupport.IsProductBinary` and unnecessary AMSI/suspicious code scan at startup time
- Update `CompiledScriptBlockData.IsProductCode` to avoid unnecessary calls to `IsProductBinary`, which attempts to retrieve catalog signature of the target file.
- Update `PerformSecurityChecks` to skip AMSI and suspicious code scan for the `.psd1` file that contains a safe `HashtableAst` only.
- Use customized `ReadOnlyBag` instead of `ImmutableHashSet` so that we can avoid loading the `System.Collections.Immutable.dll` completely.
- Replace `SHA1` with `CRC32` when generating module analysis cache file name
- This remove the loading of `System.Security.Cryptography.Algorithms.dll` at startup
- Move `ConvertFrom-SddlString` to C# to remove the `Utility.psm1` file.
- Crossgen `Microsoft.ApplicationInsights.dll` and enable tiered compilation
- Even pwsh with crossgen assemblies spends a lot time in jitting at the startup, about `191.6ms` comparing with `24.7ms` for Windows PowerShell.
- Jitting `Microsoft.ApplicationInsights.dll` takes about `51.6ms`.
- By crossgen `Microsoft.ApplicationInsights.dll` and enable tiered compilation, the jitting time drops to about `98.9ms`.
ConvertFrom-Markdown is used for converting a markdown document or string to a MarkdownInfo object.
It can optionally return a HTML or VT100 encoded string in addition to a AST of the markdown document.
Show-Markdown is used to either display the VT100 encoded string on console or redirect the HTML string to the browser.
Set/Get-MarkdownOption cmdlets get be used to view or set markdown rendering options.
Based on standard practices, we need to have a copyright and license notice at the top of each source file. Removed existing copyrights and updated/added copyright notices for .h, .cpp, .cs, .ps1, and .psm1 files.
Updated module manifests for consistency to have Author = "PowerShell" and Company = "Microsoft Corporation". Removed multiple line breaks.
Separate PR coming to update contribution document for new source files: #6140
Manually reviewed each change.
Fix#6073
* Add Remove-Alias Command. Add Remove-Alias Test. Add Remove-Alias to .psd1.
* Fix code-formatting. Fix ErrorAction on Remove-Alias instead of preference variable. Remove unnecessary Get-Alias calls. Switch Force parameter to auto property. Add ValueFromPipeline to Remove-Alias Name parameter.
* Remove empty lines. Add Remove-Alias to Unix Module .psd1. Add Remove-Alias to approved Commands test. Remove Try/Catch for SessionstateException. Add WriteError for aliasnotfound exception.
* Add ErrorAction Stop to all Get-Alias and Set-Alias Cmdlets in all tests for consistency. Add Should BeNullOrEmpty to "should throw if alias does not exist" test to verify that foo alias really is not there before removing it.
* Changed Remove-Alias parameter Name to String-Array. Changed Cmdlet Process Logic to work with String Array. Added Alias named "ral". Added test case for Alias "ral". Added "ral" Alias to list of approved Aliases. Replaced foo and bar values in all tests with better names.
* Remove "ral"-alias test as this is covered in DefaultCommands.Tests.ps1. Add test for removing multiple alias at once. Fix wrong curly braces positioning.
* Remove $FullCLR in DefaultCommands.Tests.ps1 for Remove-Alias and "ral" alias.
* Add Alias "ral" to Remove-Alias Cmdlet.
* Remove "ral" alias as this is handled by using the [Alias()] attribute on the Remove-Alias Cmdlet.
* Replace alias names used in Remove-Alias Cmdlet tests with GUIDs to avoid collisions
Updated fwlinks to pull new help content for PSv6.
Fwlink for Microsoft.PowerShell.Core module is not updated since about_*help.txt is not available yet.
* Enable Send-MailMessage for PowerShell Core
* Update cmdlet entry in DefaultCommands.Tests.ps1
* Changes per code review:
* Add check for SMTP server
* Send mail to/from currently logged-in user on currently-named machine
* Do not try to clear/create the mailbox before the test
* Add validation of Subject
Steve Lee