More flexible numerical input formats

[cyip92]

Suggestions:

• Numerical inputs generally only accept periods as decimal points and not commas, while generally it can be either one internationally
• Accepting full-form standard notation is probably somewhat infeasible, but numbers should at least support the lower values that mixed-sci shows as well as log notation
• Relic shard mode for auto-reality doesn't re-format input properly into scientific notation, resulting in some built-in strings appearing after unblur (eg. "1.5e+90")