[SPARK-25134][SQL] Csv column pruning with checking of headers throws incorrect error#22123

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koertkuipers wants to merge 6 commits intoapache:masterfrom

tresata-opensource:feat-csv-column-pruning-and-check-header

Commits on Aug 16, 2018

if csv column-pruning is turned on header should be checked with requiredSchema not dataSchema
koertkuipers
committed
update jira reference in unit test
koertkuipers
committed

Commits on Aug 17, 2018

remove test for check header and projection with column pruning disabled
koertkuipers
committed

Commits on Aug 19, 2018

also check multiLine codepath and selecting empty schema with count
koertkuipers
committed

Commits on Aug 20, 2018