fast base32 encoding into uint32 and uint64
$ go test -bench=. -benchmem .
goos: darwin
goarch: arm64
pkg: github.com/ndx-technologies/mm-go/base32
cpu: Apple M3 Max
BenchmarkEncodeDecode_Standard/uint32-16 32816378 36.46 ns/op 16 B/op 2 allocs/op
BenchmarkEncodeDecode_Standard/uint64-16 23218821 50.55 ns/op 24 B/op 2 allocs/op
BenchmarkEncodeDecode/uint32-16 128822170 9.676 ns/op 0 B/op 0 allocs/op
BenchmarkEncodeDecode/uint64-16 93620481 12.96 ns/op 0 B/op 0 allocs/op
PASS
ok github.com/ndx-technologies/mm-go/base32 7.052s