Solve db issue
Recommendation infrastructure and sqlce storage
Recommendation: bug fixes, improvements and recommendation data source
Bug fixes and api mapping and recommendation sqlce storage
Recommendation: Behavior tracking bug fixes
Recommendation: Add a simple scheduler to schedule similarity matrix re-computation job; refactor and fix bugs
Merge branch 'dev'

Conflicts:
	src/Kooboo.Commerce.CMSIntegration.DataSources.Recommendations/Kooboo.Commerce.CMSIntegration.DataSources.Recommendations.csproj