fix: implement extra filter logic

[villebro]

🐛 Bug Fix

This implements the merge_extra_filters function + applicable features other legacy Python code in utils/core.py to fix these TODOs:

/** Logic formerly in viz.py's process_query_filters */
export default function processFilters(formData: QueryFormData) {
  // TODO: Implement
  // utils.convert_legacy_filters_into_adhoc(self.form_data)

  // TODO: Implement
  // merge_extra_filters(self.form_data)

This removes all deprecated QueryObject fields (for instance, replacing QueryObject.granularity_sqla with granularity and QueryObject.having to QueryObject.extras.having etc) and makes extra filters work properly.

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[codecov]

Codecov Report

Merging #688 into master will increase coverage by 0.15%.
The diff coverage is 96.42%.

@@            Coverage Diff             @@
##           master     #688      +/-   ##
==========================================
+ Coverage   24.04%   24.20%   +0.15%     
==========================================
  Files         338      338              
  Lines        7590     7607      +17     
  Branches      918      924       +6     
==========================================
+ Hits         1825     1841      +16     
  Misses       5692     5692              
- Partials       73       74       +1     

Impacted Files	Coverage Δ
...kages/superset-ui-query/src/types/QueryFormData.ts	100.00% <ø> (ø)
packages/superset-ui-query/src/processFilters.ts	95.83% <80.00%> (-4.17%)	⬇️
packages/superset-ui-query/src/buildQueryObject.ts	100.00% <100.00%> (ø)
packages/superset-ui-query/src/extractExtras.ts	100.00% <100.00%> (ø)
...s/plugin-chart-word-cloud/src/plugin/buildQuery.ts	100.00% <100.00%> (ø)

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[rusackas]

druid_time_origin is optional on the data type checked by isDruidFormData. Should a default be specified here, e.g. druid_time_origin: formData.druid_time_origin || someDefault,?

[villebro]

The backend expects most of these to be undefined if they haven't been given an explicit value (time_grain, druid_time_origin etc). So these should be safe to leave as is.

[rusackas]

LGTM, but want to make sure that extractExtras.ts handles undefined parameters and/or provides default values wherever needed, just to be safe.