Better support for Handling Limit Adjusters and mods loading files from DllMain

[CookiePLMonster]

1. Un-hardcodes the CHandlingData array for the handling hot-reload function, now it reads the code pointer every time. This way it'll work best it can with OLA and other mods breaking the handling limits.
2. As suggested by @nta, it is possible to hook the ASI's IAT before it calls DllMain by leveraging DLL Load Notifications. They don't have publicly exposed API functions, but as evidenced, they're somewhat documented - and we're using them as conservatively as possible, bailing out on any error or a missing function. If Microsoft ever "delivers" and removes those functions, we simply fall back to the current behaviour of hooking the IAT directly after LoadLibrary.
3. Added some extra code to FXT loading to:
   • Trim trailing whitespace, like CLEO does.
   • Double-terminate FXT entries in GTA III and Vice City, as PrintString in those games has a bug where they always read one character past the null terminator. This caused a crash if the string was directly followed by unreadable memory.

Fixes #136. Many mods in the "incompatible" list are probably now compatible, as many of them were excluded solely because they are loading files in DllMain - but I have not verified them.

Fixes #138.

[CookiePLMonster]

III.VehicleAudioLoader.asi joined the naughty list for the same reason as the handling limit adjuster.

[CookiePLMonster]

As suggested by @nta, it is possible to hook the ASI's IAT before it calls DllMain by leveraging DLL Load Notifications. They don't have publicly exposed API functions, but as evidenced, they're somewhat documented - and we're using them as conservatively as possible, bailing out on any error or a missing function. If Microsoft ever "delivers" and removes those functions, we simply fall back to the current behaviour of hooking the IAT directly after LoadLibrary.

[CookiePLMonster]

Added some extra code to FXT loading to:

• Trim trailing whitespace, like CLEO does.
• Double-terminate FXT entries in GTA III and Vice City, as PrintString in those games has a bug where they always read one character past the null terminator. This caused a crash if the string was directly followed by unreadable memory.