Renamed background images

app/src/custom/res/drawable/background_drawer.xml

app/src/custom/res/drawable/background_eip.xml

app/src/custom/res/drawable/background_main.xml

app/src/main/res/drawable/background_drawer.xml

app/src/main/res/drawable/background_eip.xml

app/src/main/res/drawable/background_main.xml

...c/main/res/layout-sw600dp-port/a_provider_credentials.xml

app/src/main/res/layout-sw600dp-port/a_provider_detail.xml

app/src/main/res/layout-sw600dp-port/a_provider_list.xml

app/src/main/res/layout-xlarge/a_provider_credentials.xml

app/src/main/res/layout-xlarge/a_provider_detail.xml

app/src/main/res/layout-xlarge/a_provider_list.xml

app/src/main/res/layout-xlarge/f_eip.xml

app/src/main/res/layout/f_drawer_main.xml

app/src/main/res/layout/f_eip.xml