MySQL parsing implemented, plus minor fixes in some related files

[jnichols-git]

Signed-off-by: jakenichols2719 jnichols2719@protonmail.com

[coveralls]

Pull Request Test Coverage Report for Build 5136622783

• 697 of 832 (83.77%) changed or added relevant lines in 13 files are covered.
• 4 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.4%) to 92.361%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cmd/trickster/main.go	1	3	33.33%
pkg/backends/mysql/url.go	13	15	86.67%
pkg/backends/mysql/mysql.go	45	49	91.84%
cmd/trickster/listeners.go	3	12	25.0%
pkg/backends/mysql/model/datatypes.go	0	9	0.0%
pkg/backends/mysql/handler_query.go	12	28	42.86%
pkg/backends/mysql/parsing.go	194	240	80.83%
pkg/backends/mysql/model/model.go	379	426	88.97%

Files with Coverage Reduction	New Missed Lines	%
pkg/cache/bbolt/bbolt.go	4	88.55%

Totals
Change from base Build 5008571097:	-0.4%
Covered Lines:	17870
Relevant Lines:	19348

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💛 - Coveralls