GUACAMOLE-2139: Migrate all license information to new automated format.

doc/licenses/guice/LICENSE

@@ -0,0 +1,4 @@
+# Name:    Google Guice
+# URL:     https://github.com/google/guice
+# From:    'Google Inc.' (http://www.google.com/)
+# License: Apache v2.0

doc/licenses/guice/dep-coordinates.txt

@@ -0,0 +1,3 @@
+com.google.inject:guice:jar:*
+com.google.inject.extensions:guice-assistedinject:jar:*
+com.google.inject.extensions:guice-servlet:jar:*