ENH: Add SetJPEGQuality method

Adds Set/GetJPEGQuality to expose control of the compression quality of
the JPEG compression.

Adds three regression tests for quality settings: 1, 50, 100.

Change-Id: Ia47a86ce0c2bc2f042cf0973713b2dbc81d1ec9f
Merge topic 'TIFFImageIO_JPEGQuality'

c8c3e21 ENH: Add SetJPEGQuality method