DllBlock: hook VirtualAlloc/VirtualProtect for dynamic code exclusions

[dinhngtu]

Compatibility fix for iFlyIME.

The procedure is as following:

• During NtMapViewOfSection hook: create a list of caller address ranges where dynamic code is allowed
• Hook VirtualAlloc(Ex)/VirtualProtect(Ex):
  • Find caller IP with _ReturnAddress()
  • If caller IP is in optout range, temporarily disable dynamic code optout before calling real function
• Hook NtUnmapViewOfSection to cleanup the address range list as needed

Tested with Explorer Patcher, Translucent Flyouts, Sogou Pinyin and iFlyIME.