`Without --yaml, MSF_DATABASE_CONFIG or ~/.msf4/database.yml, project "database.yml" wins` --execute-command

MSP-11671

Run msfconsole with `--execute-command exit` instead of running
interactly and typing `exit`.  Changes average (n=10) running time for
`/usr/bin/time rake CUCUMBER_OPTS="-r features"
FEATURE=features/msfconsole/database_yml.feature:115 cucumber:boot` from 139.76
seconds to 51.42 seconds (-63.21%).
`Without --yaml, MSF_DATABASE_CONFIG or ~/.msf4/database.yml, project "database.yml" wins` --defer-module-loads

MSP-11671

Run `msfconsole` with `--defer-module-loads` to change average (n=10)
runtime of `/usr/bin/time rake CUCUMBER_OPTS="-r features"
FEATURE=features/msfconsole/database_yml.feature:115 cucumber:boot` from
51.42 seconds to 37.76 seconds (-26.57%).  (Change of -72.98% since
f950f3094de718f5294a84fb7e0a78390818ba4d.)  Raw data:
https://docs.google.com/spreadsheets/d/1vCRi_38Go3Wfq670eDCXMTSSXL1blSbk6NQsgpOqfYw/edit?usp=sharing.
"no database connection" --execute-command

MSP-11671

Call `msfconsole` with `--execute-command db_status --execute_command
exit` instead of running interactively and typing `db_status` and `exit`
to change the average (n=10) run time of `/usr/bin/time rake
CUCUMBER_OPTS="-r features"
FEATURE=features/msfconsole/database_yml.feature:134 cucumber:boot` from 195.38
seconds to 49.44 seconds (-74.70%).
"no database connection" --defer-module-loads

MSP-11671

Call `msfconsole` with `--defer-module-loads` to change runtime of
`/usr/bin/time rake CUCUMBER_OPTS="-r features"
FEATURE=features/msfconsole/database_yml.feature:134 cucumber:boot` from
49.44 seconds to 37.65 seconds (-23.83%). (-80.73% change from
22c56f525335d45623c7708ccc53561e516ae8a0.)  Raw data:
https://docs.google.com/spreadsheets/d/1vCRi_38Go3Wfq670eDCXMTSSXL1blSbk6NQsgpOqfYw/edit?usp=sharing.
"Starting `msfconsole` with a valid database.yml" --execute-command

MSP-11671

Run `msfconsole` with `--execute-command db_status --execute-command
exit` instead of running interactively and typing `db_status` and `exit`
to change the average (n=10) running time of `/usr/bin/time rake
CUCUMBER_OPTS="-r features"
FEATURE=features/msfconsole/database_yml.feature:150 cucumber:boot` from
196.30 seconds to 57.02 seconds (-70.95%).  Raw data:
https://docs.google.com/spreadsheets/d/1vCRi_38Go3Wfq670eDCXMTSSXL1blSbk6NQsgpOqfYw/edit?usp=sharing.
"Starting `msfconsole` with a valid database.yml" --defer-module-loads

MSP-11671

Run `msfconsole` with `--defer-module-loads` to change average (n=10)
runtime of `/usr/bin/time rake CUCUMBER_OPTS="-r features"
FEATURE=features/msfconsole/database_yml.feature:150 cucumber:boot` from 57.02
seconds to 38.76 seconds (-32.03%).  (-80.26% change from
288d77f31a14f4d05c7f665c2f8bbfd0c58e8d4d.) Raw data:
https://docs.google.com/spreadsheets/d/1vCRi_38Go3Wfq670eDCXMTSSXL1blSbk6NQsgpOqfYw/edit?usp=sharing.