fix(plugins): throw when Tree Data used with Pagination, closes #658

[ghiscoding]

• closes #658

[codecov]

Codecov Report

Merging #669 (672db5f) into master (6e55fd6) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##            master      #669    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          157       157            
  Lines        10432     10434     +2     
  Branches      3507      3663   +156     
==========================================
+ Hits         10432     10434     +2     

Impacted Files	Coverage Δ
...lickgrid/components/angular-slickgrid.component.ts	100.00% <100.00%> (ø)

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