Go primitives

Helper methods for golang primitives (no generics yet).

Types:

• Numbers
  • Int64s
  • Float64s
• Strings
• Custom types (satisfying interface)

Tools:

• Go generate for primitives
  • Numbers
  • Strings
  • Custom types

Methods for array: Exists, Index, Len, Sort, Copy, Uniq, Filter. Methods Sort, Uniq, Filter without allocate.