Feature/sync fragment operation

[marcinus]

Description

Provides FutureFragmentOperation that ensures proper error handling and SyncFragmentOperation. Both simplify implementation of asynchronous and synchronous actions. Updates library actions to use these interfaces.

Motivation and Context

Closes #184

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] I have read the CONTRIBUTING document.
• [x] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.

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[codecov[bot]]

Codecov Report

Merging #186 into master will increase coverage by 0.01%. The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #186      +/-   ##
============================================
+ Coverage     91.41%   91.43%   +0.01%     
- Complexity     1729     1730       +1     
============================================
  Files           165      166       +1     
  Lines          7212     7192      -20     
  Branches        207      207              
============================================
- Hits           6593     6576      -17     
+ Misses          514      511       -3     
  Partials        105      105              

Impacted Files	Coverage Δ	Complexity Δ
...nts/action/library/InMemoryCacheActionFactory.java	94.11% <100.00%> (ø)	15.00 <0.00> (ø)
...gments/action/library/InlineBodyActionFactory.java	100.00% <100.00%> (+4.16%)	7.00 <2.00> (ø)
...nts/action/library/InlinePayloadActionFactory.java	100.00% <100.00%> (+3.84%)	7.00 <3.00> (-1.00)	:arrow_up:
...nts/action/library/PayloadToBodyActionFactory.java	86.66% <100.00%> (+1.66%)	9.00 <4.00> (ø)
...gments/action/library/helper/ValidationHelper.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)

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