SQL file indentations are mixed

[robe]

On the postgis.sql.in we've got a mix of tabs and spaces

rtpostgis.sql.in and geography.sql.in are mostly tab spaced. topology is mostly spaces I think.

and then we've got true .sql files.

I think sql.in and .sql should have the same indentation.

I prefer tabs.

Should standardize and editorconfig should be updated to reflect