Merges panifex-service-api to panifex-module-api module

Signed-off-by: Mario Krizmanic <mario.krizmanic@gmail.com>
Removes SecurityService because it won't be used any more

Signed-off-by: Mario Krizmanic <mario.krizmanic@gmail.com>
Renames panifex-web-shiro to panifex-security-shiro module

Signed-off-by: Mario Krizmanic <mario.krizmanic@gmail.com>