Update OpenGL headers to version 4.5
math: Add ARM implementation for fpclassify, fpclassifyf and fpclassifyl
math: Add ARM implementation for isnan, isnanf and isnanl
softmath: Add ldexp
math: Add ARM implementation for signbit, signbitf and signbitl
softmath: Add pow
softmath: Add acoshl
softmath: Add asinhl
softmath: Add atanhl
softmath: Add exp2l
softmath: Add expl
softmath: Add expm1l
softmath: Add fmodl
softmath: Add ilogbl
softmath: Add ldexpl
softmath: Add log1pl
softmath: Add log2l
softmath: Add logbl
softmath: Add powl
softmath: Add remainderl