Create a new Favorites menu

[gustavosimon]

Suggestion

Create a new Favorites menu to render the custom Favorites commands.
This menu is to improve the experience about developing Java code using this extension.

Use Cases

I want use this feature to set a custom command and quickly execute the maven goal.
Now, we just execute the favorites/custom commands from Ctrl + Shift + P (Cmd + Shift + P, on Mac)

Examples

An example is add the 'mvn clean install' command to clean and install the Maven project.
We can also set another commands like 'clean compile', 'clean package', ...
So, in this way we can quickly execute the custom maven goal.

This issue is about the discussion on PR #870.

[gustavosimon]

Hi @Eskibear ! Can you assign this issue for me? Thanks.

[gustavosimon]

Closing this issue because #900 was merged and #901 was created.