Mouse Preferences: store settings for multiple mouses.

Use a BMessage for the mouse settings. Store an array of mouse_setting
and an array of names for the corresponding mouses.

The input preferences can load the settings in both the old and new
format. If in the old format, the settings are applied to all mouses.

In this commit, input_server is not modified yet to use the new settings
format, leading to unusable mouse.

Change-Id: I37dd27cfa3ac55c6956cc4fb7fc8fabc85a59448
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2953
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Input preferences: fix list minimum size

- Use the longest device name as a min size
- Refactor things a bit to simplify the code
- Also set weights in the top group view to ensure a nice ratio between
the list and the other part of the window

Input: add icons to the DeviceList

Change-Id: I2eaebca0f0e91e3420b7e63a4a568f4e658af253
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2722
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Fix Bug: Remove Wacom device from Devicelist

I make some changes in the wacom input server to solve the bug mentioned above. I don't have wacom and unable to buy it duw to COVID-19.
Can anyone please test the code.

Change-Id: I27a7353cafd495f89d7ba7f8a6f4fa7e8abc86e1
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2448
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

Live update of Input preferences device list

- Implement watch_input_devices in input_server, as it was TODO. For
now, only one watcher is allowed at a time.
- Use it in Input preferences to get notified about added and removed
devices and update the device list accordingly.

Change-Id: I52018af53738e68271d6d63b5bea31fd7cab1b3b
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2041
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Connected Devices: Mouse, Touchpad and Keyboard

-Resolve some issues.
-Added the connected devices code in the main window.
-Replace BUTTON_DEFAULTS and BUTTON_REVERT with kMsgDefaults and kMsgRevert.

Change-Id: I3b0c86fc581056859239df0fbf2c085b8d168136
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1619
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Input preferences: fix build

One file was accidentally missing from this commit and was added to the
next one (which isn't ready for merging yet). Add it back here instead.

Completed Mouse and Touchppad preferences

Complete working and view of pointing devices(mouse and touchpad).

Resolve some issues.
Added the Jamfile

Change-Id: I4db021cb8c63971e5af60bd254c8b3b588d023e9
Reviewed-on: https://review.haiku-os.org/c/1426
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>