Sync the appearance of the icon for garrisoned and multiple selected units

[Langbart]

Below is the current appearance for an active player of his garrisoned and multiple selected units with their tooltip. Below is the current appearance for an observer.

Issues:

• The icon for multiple selected units should also have a hotkey tooltip and be coloured in the player colour. Related tickets: #4167 (25/Aug/16, #4052 (11/Jun/16)
• The hotkey tooltips should get a `colorizeHotkey' treatment. Coloured hotkeys did not exist when this sting was added [11385].
• The player name should be coloured, but ensure that the name remains readable on a black background.
• The garrison panel needs to show the current number of units and the maximum number of garrisonable units for that structure. This could be done with an extended panel (similar to the panel for the training queue). Related tickets: #1774 (16/Dec/12), #817 (2/May/11), #645 (25/Nov/10)

[Langbart]

fix image macros

[Freagarach]

1. The colour is not necessary, since one can only select multiple units from one player at a time.
2. I guess the observer should not see "Player: Player 1" but rather "Player: picus l4"?

[Langbart]

Replying to Freagarach:

1. The colour is not necessary, since one can only select multiple units from one player at a time.

Having those icons in the player color looks better.

2. I guess the observer should not see "Player: Player 1" but rather "Player: picus l4"?

This is an error if you start the game from the command line.