feat: Integration with fast_float

[swaingotnochill]

See #1069

This is a draft pull request and the work is in progress.

The goal of this is to get timely feedback and reviews from the reviewers.

TODO:

• Create the wrapper and archive it.
• [] Replace it with strtod.
• [] Benchmark it.
• [] Run it on different platforms.

cc: @madolson @PingXie

[madolson]

@parthpatel FYI.

If possible we would rather not take the C++ dependency, although that might be doable. Do you know how much effort it would be to port the code into C. The templating code seems very generic, but I don't think we need all the flexibility it is providing.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.72%. Comparing base (36d438b) to head (8a54ec2).
Report is 12 commits behind head on unstable.

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #1170      +/-   ##
============================================
+ Coverage     70.69%   70.72%   +0.02%     
============================================
  Files           114      114              
  Lines         61693    63006    +1313     
============================================
+ Hits          43611    44558     +947     
- Misses        18082    18448     +366     

see 97 files with indirect coverage changes