Fix/thou shalt not defer

[kasvith]

Pull Request for issue #23

Description

Removed defer from

• HMaps
• Sets
• Lists

Changed FLen of HMap to return number of bytes in the string

Testing Instructions

Run tests

Excepted Behavior

it should be passing

Actual Behavior

its passing

Additional Comments

[codecov]

Codecov Report

Merging #74 into master will increase coverage by 1.02%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master     #74      +/-   ##
=========================================
+ Coverage   71.47%   72.5%   +1.02%     
=========================================
  Files          10      10              
  Lines         617     640      +23     
=========================================
+ Hits          441     464      +23     
  Misses        170     170              
  Partials        6       6

Impacted Files	Coverage Δ
pkg/types/list/list.go	99.09% <100%> (+0.06%)	⬆️
pkg/types/hashmap/hmap.go	100% <100%> (ø)	⬆️
pkg/types/set/set.go	100% <100%> (ø)	⬆️

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