Decision module may access available interventions

[willu47]

Added two layers of set operations in the DecisionManager and DecisionModule and addresses issue #333. DecisionManager now updates pre-decision state (from the previous iteration) with new decisions and writes this to the store for current timestep and iteration.

This is a requirement of nismod/nismod2#82

Consider set of all interventions Set of planned interventions Available interventions Decisions at time t

Todo:

• [x] Update pre-specified and decision module decisions using technical_lifetime attribute
• [x] Check that pre-specified planning and decision module approaches work together

This PR now also removes the pre-specified planning decision module, instead treating initial conditions and pre-specified planning as state which is all dealt with in the get_and_save_decisions method in the decision manager.

[codecov[bot]]

Codecov Report

Merging #339 into develop will increase coverage by 0.13%. The diff coverage is 90%.

@@             Coverage Diff             @@
##           develop     #339      +/-   ##
===========================================
+ Coverage    70.43%   70.57%   +0.13%     
===========================================
  Files           59       59              
  Lines         5135     5179      +44     
  Branches       608      615       +7     
===========================================
+ Hits          3617     3655      +38     
- Misses        1426     1431       +5     
- Partials        92       93       +1

Flag	Coverage Δ
#javascript	70.57% <90%> (+0.13%)	:arrow_up:
#python	78.47% <90%> (+0.08%)	:arrow_up:

Impacted Files	Coverage Δ
src/smif/data_layer/abstract_data_store.py	100% <100%> (ø)	:arrow_up:
src/smif/data_layer/store.py	94.84% <100%> (ø)	:arrow_up:
src/smif/decision/decision.py	93.27% <89.68%> (-0.06%)	:arrow_down:
src/smif/data_layer/data_handle.py	82.8% <0%> (-1.21%)	:arrow_down:

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