feat(editors): add onBeforeOpen optional callback to Composite Editor

[ghiscoding]

No description provided.

[codecov]

Codecov Report

Merging #306 (830370f) into master (0e89f5e) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #306   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          212       212           
  Lines        12716     12718    +2     
  Branches      4344      4345    +1     
=========================================
+ Hits         12716     12718    +2     

Impacted Files	Coverage Δ
...-component/src/slick-composite-editor.component.ts	100.00% <100.00%> (ø)

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