Add quoted.Liftable[BigInt] and quoted.Liftable[BigDecimal] to the stdlib

[nicolasstucki]

No description provided.

[liufengyun]

Otherwise, LGTM

[plokhotnyuk]

@nicolasstucki is it can be done only through string representation?

Have you considered to use Array[Byte] for BigInt and (Array[Byte] /* mantissa */, Int /* scale */, java.math.MathContext /* mc */) for BigDecimal instead?

Conversion through the string can be inefficient for really big numbers or lead for some unexpected rounding...

[nicolasstucki]

I did consider the Array[Byte] variant, but I left it as an optimization for later as I still do not have the liftable for Array[Byte]. But I can add the generic version and add the specialised one afterwards.

Implementation changed

[liufengyun]

LGTM