[454218] Improve default settings for the genmodel

Automatically set the output source folders as "src-gen" and the base
package.
Disable the tests generation by default.
Also reorder the the menu actions so that "Generate All" is in first
position making it easier to access through mouse clicks.


Bug: 454218
Change-Id: Ic3c3e0adc680f60e6f6578173f604baa2c70417d
2 files changed