Add Number.fromString and Number.fromBigInt

[jessekelly881]

What is the problem this feature would solve?

There is currently no wrapper for Number.parseFloat in the lib without reaching for Schema which is overkill for some cases.

What is the feature you are proposing to solve the problem?

Add safe implementations(i.e. returning Option) of Number.fromString, Number.fromBigInt. They are useful by themselves and can be used by Schema.numberFromString instead of handling the parsing logic there.

What alternatives have you considered?

No response

[jessekelly881]

Also, BigInt.fromString, BigInt.fromNumber