Fix matching of numbers

[MrEbbinghaus]

Description of the Change

This PR fixes several issues with number matching. (See #89)

1. Clojure allows for an explicit + prefix.
2. Clojure has three symbolic Number values for +/- infinity and "Not a Number"
3. Every integer number can have the BigInt suffix N, that includes octals, hexadecimals and arbitrary radix
   • I merged constant.numeric.bigint.clojure into constant.numeric.long.clojure as it doesn't make any sense any more, to have it separate.
   • I also merged constant.numeric.bigdecimal.clojure into constant.numeric.double.clojure for consistency.
4. The decimal separator . is optional when followed by e, E, M
5. "Arbitrary" radix is constraint to 2-36 (digit 0-9 & a-z). Also, \w also matches _ which is incorrect.
   • One could argue, that mismatching radix/value (e.g. 2rABZ) shouldn't be matched either, but I considered it overkill.
   • This change is debatable, because it
6. Octal numbers can't contain 8 or 9

It also adds a bunch of tests to check for previously missed cases.

Alternate Designs

I considered constraining the changes to only eliminate false-negatives. (Change 5 and 6 are only fixing false-positives)
I opted against that because a more strict highlighting is the fastest way of feedback a developer can get.

Benefits

More accurate highlighting of numbers.

Possible Drawbacks

The matching is more strict. Some false-positives aren't highlighted any more. (Although not really a drawback, it is a breaking change if someone relies on current bugs... But, how would?)

Applicable Issues

resolves #89

[MrEbbinghaus]

These changes were merged into the Calva Clojure IDE. BetterThanTomorrow/calva#1435

[MrEbbinghaus]

@kevinsawicki @50Wliu

Hey, is this repository still maintained or is it abandoned?
If it is abandoned, where can I report and fix parsing/highlighting issues to?

[50Wliu]

Hey! @darangi and @sadick254 would be the two best equipped to answer that, I think. Let me look at this PR though and see if I have any comments.

[50Wliu]

Yep, looks about right.

[darangi]

Thanks for the contribution 🙇🏾 @MrEbbinghaus