Account for #skiprows and #headerrows in spreadsheet validation error messages

[duncandewhurst]

The row number reported in spreadsheet validation error messages is incorrect when the #skiprows or #headerrows configuration properties are set.

For example, in the data which generated the following error message (a spreadsheet with #skiprows set to 2 and #headerrows set to 5) the error is actually on row 8, not row 2:

The row reported in the error message should account for the configuration properties set in the source spreadsheet.

[robredpath]

@stevieflow @Bjwebb will this affect IATI CoVE as well?

[stevieflow]

@robredpath I've observed this in IATI CoVE too, but not reported it ! So, fixing this would be a benefit

[jpmckinney]

For whom is this an issue among OCDS users?

[duncandewhurst]

Anyone who uses the data collection spreadsheet or previous iterations of input templates for OCDS and OCDS for PPPs.

A previous iteration was in use by Los Angeles (although I believe that project has now finished) and the data collection spreadsheet is in use by some Nigerian states and has been shared with various other partners.