Merge pull request #6 from OMOPHub/develop

Add FHIR Resolution section to pkgdown documentation

Merge pull request #2 from OMOPHub/develop

Release version 1.6.0 with FHIR-to-OMOP concept resolution features

Release version 1.5.0 with new bulk search features

v1.4.0 release

Tests extension

Enhance get_by_code() with include_synonyms and include_relationships…

… parameters; update User-Agent header to OMOPHub-SDK-R/1.0.0; add rate limit delay in integration tests.

Fix rate limiting by running R-CMD-check jobs sequentially