v1.16.0

• Updated VIA PADLOCK instructions, added missing XSHA512 instruction #260 (VIA info from @tremalrik)
• Added IsJcxShort/IsLoopcc/IsLoop methods/props #227 (Credit @am0nsec), #259
• Rust
  • Made CodeAssembler traits public #236 (Credit @Kixiron)
  • Make some Instruction/Register fns const #240 (Credit @i509VCB)
  • Removed HashMap (hashbrown crate if no_std) dependency from block_encoder feature #248
    • Fixes #247 (can't build with no_std on Windows)
    • This also resulted in better block encoder perf (30s -> 19s when encoding a ton of instructions)
  • Removed deprecated Instruction::with_* methods (use with{1,2,3,4,5}() instead)
  • Bumped MSRV to 1.54.0 #252
• Python
  • PyPy wheels uploaded to PyPI (Linux x64, Windows x64) #250
  • Minimum supported Python version is now 3.7 #251
• JS:
  • BigInt is supported by default now #258