imagegen: Move CSS to war

apps/imagegen/imagegen/webapp/src/main/webapp/imagegen.css

apps/imagegen/imagegen/webapp/src/main/webapp/index.html

apps/routerconsole/jsp/themes/console/dark/console.css

apps/routerconsole/jsp/themes/console/dark/console_ar.css

apps/routerconsole/jsp/themes/console/dark/console_big.css

apps/routerconsole/jsp/themes/console/dark/images/chart.png

...outerconsole/jsp/themes/console/dark/images/confirmed.png

...jsp/themes/console/dark/images/console_status_running.png

...sp/themes/console/dark/images/console_status_starting.png

...jsp/themes/console/dark/images/console_status_stopped.png

...routerconsole/jsp/themes/console/dark/images/dropdown.png

...onsole/jsp/themes/console/dark/images/dropdown_active.png

...console/jsp/themes/console/dark/images/dropdown_hover.png

apps/routerconsole/jsp/themes/console/dark/images/eye.png

.../routerconsole/jsp/themes/console/dark/images/favicon.ico

apps/routerconsole/jsp/themes/console/dark/images/header.png

apps/routerconsole/jsp/themes/console/dark/images/help.png

.../routerconsole/jsp/themes/console/dark/images/i2plogo.png

...routerconsole/jsp/themes/console/dark/images/infohelp.png

...routerconsole/jsp/themes/console/dark/images/infowarn.png