Getting rid of Microsoft specific types

Defines and typedefs such as BOOL, CONST, UINT and DWORD are used pretty much everywhere in the codebase.
Most of these defines where introduced a long time ago (BOOL was added before bool was thrown into C++) and now, most of them are meaningless.
Nowadays, every decent compiler should support C++'s fundamental types without any problem.
Of course, DirectX types and some other funky types (HWND, HHOOK and so on) can't be replaced but there's no excuse for more common types I've pointed out earlier.

Pros

• Less error-prone (every Microsoft specific type names are upper case)
• Makes high-level parts of the engine less dependent on MSVC / Windows API
• Improves compile/runtime speed and makes debugging tasks easier (BOOL is a int typedef whereas bool is a true type)
• Syntax highlighting / code readability is slightly improved; GitHub syntax highlighter (and probably many others) don't know about BOOL, HANDLE or DWORD but it does its job perfectly well on the standard types.

Cons

• Nothing. Really, I can't think of any drawbacks.

What to do?

There's nothing hard. We just need to search for these types and replace them by their standard
equivalent.
If you _really_ have to use a non-standard type in a piece of code, it should be better to keep this code 'away (i.e. not in a header nor in the middle of a high-level source file)
To make things easier, here's a table with what should be considered for replacement and their equivalents.

1 - Representation of an integer type for pointer precision

• INT_PTR / LONG_PTR are mapped to a 32-bit signed integer on 32-bits systems and to a 64-bit signed integer on 64-bits systems.
• DWORD_PTR / UINT_PTR are mapped to a 32-bit unsigned integer on 32-bits systems and to a 64-bit unsigned integer on 64-bits systems.

It's clear that the easiest way to do that would be to use cstdint along with the standard types. Feel free to share anything, any ideas about all this.

No files or tests are named. Start with a repository-wide search for the listed Microsoft-specific types and separate replaceable fundamental types from DirectX and Windows API types that must remain. Done means the eligible uses are converted to standard or cstdint types without changing platform-specific interfaces, then the project still compiles.