Add (more) x64 types

[C0D3-M4513R]

By types, I mean mostly these:

• LDR_DATA_TABLE_ENTRY
• PEB_LDR_DATA
• PEB
• PROCESS_BASIC_INFORMATION

Right now, there are Platform independent x86 types and Platform dependent types, but no Platform independent x64 types.

For the time being, I just copied the existing definitions, and modified them slightly. I copied the Macros, that cannot be imported, for the time being.

I need those types, because I am building a dll injector, that will support injecting into a x64 process, from a x86 injector. I am reading the PEB, to get the base address, of kernel32.dll.