Add @curry decorator

[orsinium]

Add 2 decorators for currying. Related to #341. I'm not sure about typing and documentation to say that the PR closes the issue. However, I've tried my best 👀

[orsinium]

"Install poetry" job fails, I'm not guilty >.<

[orsinium]

Benchmarks:

name                      |      import      [ms] |     decorate     [ms] |       call       [ms] |
                          | min     avg     max   | min     avg     max   | min     avg     max   |
returns.curry:eager_curry | 0.125 - 0.125 - 0.931 | 0.023 - 0.024 - 0.042 | 1.493 - 1.493 - 1.493 |
returns.curry:lazy_curry  | 0.115 - 0.115 - 0.145 | 0.023 - 0.025 - 0.035 | 0.043 - 0.043 - 0.043 |
monads.currying:curry     | 0.177 - 0.177 - 6.332 | 0.361 - 0.375 - 0.480 | 0.456 - 0.456 - 0.456 |

[codecov]

Codecov Report

Merging #350 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #350   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           30        30           
  Lines          942       966   +24     
  Branches       107       108    +1     
=========================================
+ Hits           942       966   +24     

Impacted Files	Coverage Δ
returns/context/__init__.py	100.00% <ø> (ø)
returns/context/requires_context_io_result.py	100.00% <ø> (ø)
returns/context/requires_context.py	100.00% <100.00%> (ø)
returns/curry.py	100.00% <100.00%> (ø)

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