Add global defaults including enable/disable

[lordjabez]

Adds new set_default_params function to allow setting of global defaults. See description in README and function header for details.

Also adds enable_caching and disable_caching functions so caching can be turned on or off across all decorators at any time.

Fixes #56
Fixes #100
Fixes #117

[codecov]

Codecov Report

Merging #120 (f737168) into master (45c11aa) will increase coverage by 1.67%.
The diff coverage is 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           master      #120      +/-   ##
===========================================
+ Coverage   98.32%   100.00%   +1.67%     
===========================================
  Files           5         5              
  Lines         477       494      +17     
  Branches       76        79       +3     
===========================================
+ Hits          469       494      +25     
+ Misses          5         0       -5     
+ Partials        3         0       -3     

Impacted Files	Coverage Δ
cachier/base_core.py	100.00% <100.00%> (ø)
cachier/core.py	100.00% <100.00%> (+3.81%)	⬆️
cachier/memory_core.py	100.00% <100.00%> (ø)
cachier/mongo_core.py	100.00% <100.00%> (+3.12%)	⬆️
cachier/pickle_core.py	100.00% <100.00%> (+0.52%)	⬆️

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[shaypal5]

I read through this! Looks great, and very extensively tested! Nice one, Judson! :)

[lordjabez]

@shaypal5 do you have an idea when you'll get a new release out with this PR? I've got some "day job" work blocked on being able to pull it into a CI/CD pipeline from PyPI. And yes I realize there are workarounds to that, but I'd rather just get it the official way.

[shaypal5]

Released as v2.1.1