Support wide bitvector types (>64 bits) in cpp transpiler for enums

[allight]

Describe the bug
DSLX enums which are wider than 64 bits are truncated down to 64 bits in the cpp_transpiler

To Reproduce

Run cpp transpiler with:

enum MyUnsupportedWideEnum : uN[555] {
  A = 0,
  B = sN[555]:-1 as uN[555],
}

Expected behavior
Some way of encoding B and the type as 555 bits

Current Behavior

enum class MyUnsupportedWideEnum: int64_t {...}

See #1135