Implement CQL ToTime and rearrange ToDate and ToDateTime

[marlenaMyr]

No description provided.

[codecov]

Codecov Report

Merging #747 (8bd10f7) into develop (ebc0762) will increase coverage by 0.01%.
The diff coverage is 97.67%.

@@             Coverage Diff             @@
##           develop     #747      +/-   ##
===========================================
+ Coverage    93.58%   93.59%   +0.01%     
===========================================
  Files          233      233              
  Lines        14300    14338      +38     
  Branches       390      391       +1     
===========================================
+ Hits         13382    13419      +37     
  Misses         528      528              
- Partials       390      391       +1     

Impacted Files	Coverage Δ
...fhir-structure/src/blaze/fhir/spec/type/system.clj	91.66% <92.30%> (+0.03%)	⬆️
...ules/cql/src/blaze/elm/compiler/type_operators.clj	83.19% <100.00%> (+0.73%)	⬆️
modules/cql/src/blaze/elm/date_time.clj	93.17% <100.00%> (+0.03%)	⬆️
modules/cql/src/blaze/elm/deps_infer.clj	77.50% <100.00%> (+0.07%)	⬆️
modules/cql/src/blaze/elm/nil.clj	100.00% <100.00%> (ø)
modules/cql/src/blaze/elm/protocols.clj	100.00% <100.00%> (ø)
modules/cql/src/blaze/elm/string.clj	100.00% <100.00%> (ø)