Support all capabilities for toml integers and floating point numbers

[phlptp]

This PR add support for all TOML integer types.
This includes

{"+99", 99},
    { "99",99 },
    { "0xDEADBEEF",0xDEADBEEF },
    { "0xdeadbeef",0xDEADBEEF },
    { "0xdead_beef",0xDEADBEEF },
    { "0xdead'beef",0xDEADBEEF },
    { "0o01234567",001234567 },
    { "0o755",0755 },
    { "0755",0755 },
    { "995862_262",995862262 },
    { "995862262",995862262 },
    { "+995862275",+995862275 },
    { "995'862'275",995862275 },
    {"0b11010110",0xD6},
    {"0b1101'0110",0xD6},
    {"1_2_3_4_5",12345},

So support for separators (Toml and C++ standards), binary(new), hex(worked previously), and octal(new)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (dc137f0) 100.00% compared to head (8428b19) 100.00%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #968   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           18        18           
  Lines         4506      4555   +49     
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+ Hits          4506      4555   +49     

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[phlptp]

Todo in next PR, Transform operation with escaped strings so it can be done in the CLI processing, and documentation update