fix(presets): compound filters operator not working correctly w/presets

[ghiscoding]

• grid presets should work with short/long operator names, basically StartsWith/EndsWith were not working correctly while a*/*z were working correctly, both options should work

[codecov]

Codecov Report

Merging #507 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #507   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          148       148           
  Lines         9566      9570    +4     
  Branches      3332      3333    +1     
=========================================
+ Hits          9566      9570    +4     

Impacted Files	Coverage Δ
...es/angular-slickgrid/filters/compoundDateFilter.ts	100.00% <100.00%> (ø)
...s/angular-slickgrid/filters/compoundInputFilter.ts	100.00% <100.00%> (ø)
.../angular-slickgrid/filters/compoundSliderFilter.ts	100.00% <100.00%> (ø)
...s/angular-slickgrid/services/grid-odata.service.ts	100.00% <100.00%> (ø)

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