Add intrinsic functions

[Fryguy]

• States.ArrayPartition
• States.ArrayContains
• States.ArrayRange
• States.ArrayGetItem
• States.ArrayLength
• States.ArrayUnique
• States.Base64Encode
• States.Base64Decode
• States.Hash
• States.MathRandom
• States.MathAdd
• States.StringSplit

Part of #64

[miq-bot]

Checked commits https://github.com/Fryguy/floe/compare/19c8431bee5d3bbcad8b5728ba624884c4254cc1~...355170f3001f0a730e29760b162bff732a079ee7 with ruby 3.1.5, rubocop 1.56.3, haml-lint 0.51.0, and yamllint 4 files checked, 0 offenses detected Everything looks fine. :trophy:

[Fryguy]

@agrare I'd like to merge this one at this point. It's not all of the functions, but the next few are the more complicated ones.