Public release. coreclr \ ILAsm 4.700.2
* NEW: Implemented new `/REBASE` key feature for IL Assembler. Issue #7.
It will try to rebase system object: `netstandard` } `System.Runtime` } `mscorlib`
Full explanation in related issue:
https://github.com/3F/DllExport/issues/125#issuecomment-561245575
* CHANGED: Removed any use of the cvtres via CLR system directory.
* CHANGED: Updated coreclr 3.1.0 RTM