JIT: implement assembly name dissassembly filtering (#18306)

JIT: implement assembly name dissassembly filtering (#18306)

Add `COMPlus_JitDisasmAssemblies` to specify a whitelist of assemblies
whose methods will be disassembled (also filters out order, EH, GC, and
unwind info dumps too).

Intended use is for PMI asm diffing. Since PMI runs in process, current
disassembly will dissassemble various methods in PMI itself as well
as framework methods that did not get prejitted.

With this new config option we can restrict disassembly to just the assemblies
that we're processing via PMI.