Test and document SQL Script for preparing OMOP-formated data for loinc2hpo library

[pnrobinson]

• Explain the script, step by step, so that users will be easily able to adapt the script to specific analysis goals.
• Add the script to this repository

[iimpulse]

OMOP can be loaded in many formats on different platforms. OMOP2OBO supports loading from a csv file currently but we want to be able to support N3C as well.

• Create OMOP loader class for different required tables in different formats (dataframe or csv)
• Create OMOP Processor to process and impute loinc values based on current code in N3C
• Acceptance requirements is to get the same table that we get at the end of n3c transform via loinchpo code.

[iimpulse]

depends on #28

[iimpulse]

Upon testing, data has been consistently been updated so an exact match is not possible. Will observe if first table is subset of second result set.

[iimpulse]

Data has been removed from N3C overall good coverage.