Merge branch '16-fix-papaparse-dependency-to-proper-parse-uppercase-e-notation-floats' into 'master'

Resolve "fix papaparse dependency to proper parse uppercase E-Notation floats"

Closes #16

See merge request !14

Merge branch '15-keep-spelling-with-uppercase-etc-from-tablename-for-usage-in-indexnames' into 'master'

Resolve "keep spelling with uppercase etc from tablename for usage in indexnames"

Closes #15

See merge request !13

Fix header typo in Ohsome2X.ts

See merge request !12

Resolve "Don't use CLUSTER command on partitioned tables"

Closes #12

See merge request !11

Resolve "Set proper User-Agent"

Closes #11

See merge request !10

close #11 alwas set user-agent header plus optional custom user-agent header through ohsome2xConfig obejct

Resolve "Add possibility to keep Columns from the source table"

Closes #9

See merge request !8

Resolve "PgAsync not compatible with node v14.x. Change to pg-promise"

Closes #8

See merge request !7