Using Go modules instead of Dep for package manager.

[bean1310]

Related Issue

#23

How Has This Been Tested?

I ran the test script.

$ ./scripts/run-test-with-coverage.sh
running go test with coverage
?   	github.com/kenfdev/remo-exporter	[no test files]
ok  	github.com/kenfdev/remo-exporter/config	0.045s	coverage: 89.7% of statements
ok  	github.com/kenfdev/remo-exporter/exporter	0.042s	coverage: 82.2% of statements
?   	github.com/kenfdev/remo-exporter/http	[no test files]
?   	github.com/kenfdev/remo-exporter/log	[no test files]
?   	github.com/kenfdev/remo-exporter/mocks	[no test files]
?   	github.com/kenfdev/remo-exporter/types	[no test files]

[kenfdev]

Thanks for your contribution @bean1310 !
Since I've been away from this project for a while, I'll have to see if I can release this smoothly enough.

Let's merge this and see what happens 👍