Reviewed comments made by Josh and removed debugging print statements and changed _get_channel_start to get_channel_start within SNCL.py and any other script which references this function.

Fixed the bugs cuasing interval to be defined as none. This required changes to the FDSNFactory.py after fixing this another bug was found in IAGAWriter2002.py, This was also fixed. The change made to the test_metadate.py script was something that Nich told me about that hasnt been merged in yet. Happy to take it out if need be but I left it in for the time being.

New flag metadata class

See merge request !292

New Instrument class and Observatory class edits

See merge request !290

Added metadata Dict to parse_params and additional functionality to get_metadata to handle metadata Dict after response.

Added the @interval property to store the data interval based on the channel...

See merge request !320

Updating the version to v1.10.0

Closes #111

See merge request !321