Make installing and running the report generator better.

* github.com/GeertJohan/go.rice the relocated executable can find the template file
* allow loading settings in your homedir because it makes more sense there
1 job for jarv/settings-and-template in 1 minute and 32 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Test
failed #41776197
build

00:01:32

 
Name Stage Failure
failed
build Test There is an unknown failure, please try again
--- PASS: TestParseConfigWrong (0.00s)
=== RUN TestParseConfigCorrectly
--- FAIL: TestParseConfigCorrectly (0.00s)
config_test.go:38: failed to open the configuration file: open ../settings-example.yaml: no such file or directory
FAIL
coverage: 60.0% of statements
FAIL gitlab.com/gl-infra/oncall-robot-assistant/config 0.002s
? gitlab.com/gl-infra/oncall-robot-assistant/oncall [no test files]
ERROR: Job failed: exit code 1