Enable filter processor as a default processor

[anniefu]

Description:
Add filter processor as a default processor.

Change trace processor to be old format so the filterprocessor correctly implements the old processor factory interface, otherwise there will be runtime errors.

Link to tracking Issue: part of #560

Testing: N/A

Documentation: N/A

[anniefu]

I was planning on implementing a filter traceprocessor too, though I'm not sure of the best way to go about it now since the metric one needs to be on the old processor interfaces, and the trace one should use the new processor interfaces. But we can only have one "filter" type factory.

Should I just implement the traceprocessor using the old interface for now and wait for new metrics processor interface to be ready to migrate them both?

[codecov]

Codecov Report

Merging #1085 into master will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1085      +/-   ##
==========================================
- Coverage   86.34%   86.33%   -0.02%     
==========================================
  Files         198      198              
  Lines       14158    14159       +1     
==========================================
- Hits        12225    12224       -1     
- Misses       1477     1478       +1     
- Partials      456      457       +1     

Impacted Files	Coverage Δ
processor/filterprocessor/factory.go	100.00% <100.00%> (ø)
service/defaultcomponents/defaults.go	84.00% <100.00%> (+0.32%)	⬆️
translator/internaldata/resource_to_oc.go	73.52% <0.00%> (-2.95%)	⬇️

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[bogdandrutu]

@anniefu let me send a quick PR to transform metrics on the new interface.