* match wstring.c
* match math_api.c, mbstring.c, mem.c and mem_funcs.c
* more progress
* build issues
* fix non-matching issues
* reorganise files
* match fdlibm (+ libc progress)
* fix jp build
* solved some non-matchings and progress
* removed types.h usage in libc
* match data and add missing delinks for jp