MdePkg: Add ArmCompatSemiHostingLib #11678
                
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Introduces a semi-hosting library adhering to the ARM protocol, enabling communication with a host computer via a debugger.
A complete documentation of the protocol is available at the https://github.com/ARM-software/abi-aa/blob/main/semihosting/semihosting.rst
RISC-V binary interface documentation is available at the https://github.com/riscv-non-isa/riscv-semihosting/blob/main/riscv-semihosting.adoc
This library incorporates code from ArmPkg/Library/SemihostLib with some cleanup and clarification.
How This Was Tested
Tested on RISC-V with Console and Simple File System on host environment.
Integration Instructions