154579b30d
- Add bux_str_to_float() C runtime wrapper (strtod) - Add String_ToFloat() in library/std/String.bux - Update JsonParser_ParseNumber to use String_ToFloat (decimals now work) - Update JsonParser_ParseString to decode escape sequences (\n, \t, \r, \", \\, \b, \f) - Fix use-after-free in JsonParser_ParseString: String_Copy before StringBuilder_Free