Added Invoke-ReflectivePEInjection

Another awesome addition from Joe Bialek. Invoke-ReflectivePEInjection
is a vast improvement over Invoke-ReflectiveDllInjection. It adds the
following features:

* Now supports loading exe files in memory
* Supports reflective dll injection into a remote process
* Additional sample Visual Studio solutions

CodeExecution/Invoke-ReflectivePEInjection_Resources/Shellcode/x64/GetFuncAddress.asm

@@ -0,0 +1,27 @@
+[SECTION .text]
+
+global _start
+
+_start:
+	; Save state of rbx and stack
+	push rbx
+	mov rbx, rsp
+
+	; Set up stack for function call to GetProcAddress
+	sub rsp, 0x20
+	and sp, 0xffc0
+
+	; Call getprocaddress
+	mov rcx, 0x4141414141414141	; DllHandle, set by PS
+	mov rdx, 0x4141414141414141	; Ptr to FuncName string, set by PS
+	mov rax, 0x4141414141414141	; GetProcAddress address, set by PS
+	call rax
+
+	; Store the result
+	mov rcx, 0x4141414141414141	; Ptr to buffer to save result,set by PS
+	mov [rcx], rax
+
+	; Restore stack
+	mov rsp, rbx
+	pop rbx
+	ret