impoves raylib_parser: makes it generic, adds -d key for functions define (RLAPI for raylib.h), increases maxiumum number of fields in structs and values in enums, doubles max length of struct field names; split float3/float16 struct typedefs in raymath to allow parser to process the file (#1901)

src/raymath.h

@@ -135,8 +135,13 @@
 #endif
 
 // NOTE: Helper types to be used instead of array return types for *ToFloat functions
-typedef struct float3 { float v[3]; } float3;
-typedef struct float16 { float v[16]; } float16;
+typedef struct float3 {
+	float v[3];
+} float3;
+
+typedef struct float16 {
+	float v[16];
+} float16;
 
 #include <math.h>       // Required for: sinf(), cosf(), tan(), atan2f(), sqrtf(), fminf(), fmaxf(), fabs()