Scalar arrays

Unboxed arrays of scalar values, backed by the Lean runtime's scalar arrays:

• unsigned integers: UInt8Array, UInt16Array, UInt32Array, UInt64Array, USizeArray;
• signed integers: Int8Array, Int16Array, Int32Array, Int64Array, ISizeArray;
• floating point: Float32Array, Float64Array.

All of them live in the ScalarArray namespace and share the same API.

ScalarArray.Conversions, which this module imports, converts UInt8Array and Float64Array to and from core's ByteArray and FloatArray without copying. The experimental ScalarArray.Bytes converts the arrays to and from bytes in a chosen byte order; import it on its own.