dedicated repo to make example and test them as writing Odin documentations

developed in forked Odin-repo: here

Current open-PR in Odin-master: [doc-core:math] Documentation for core:math package. (partials) #4961

• core:math
  • math.odin
    • [DONE] sqrt procedure group
    • [DONE] sin procedure group
    • [DONE] cos procedure group
    • [DONE] tan procedure group
    • [DONE] to_radians procedure group
    • [DONE] to_degrees procedure group
    • [DONE] DEG_PER_RAD constant
    • [DONE] RAD_PER_DEG constant
    • [DONE] asin procedure group
    • [DONE] acos procedure group
    • [DONE] atan procedure group