Add support for Lenovo 2-in-1 IdeaPad 5 Wacom HID 53BB Pen

[sperdev54]

this PR adds a .tablet file for the Wacom HID 53BB Pen found in the Lenovo 2-in-1 IdeaPad 5.

I have a Lenovo 2-in-1 IdeaPad 5 and gnome identified the device as unknown and displayed the warning:
"Wacom HID 53BB Pen: this device is unknown and may present wrong capabilities."

The pen has 2 buttons, but only 1 was recognized by the system. Using the device's real characteristics, I created a custom .tablet entry to properly describe it.

[github-actions]

Hi, there. I'm a bot and have been asked to have a look at this.

Please run the sysinfo script from https://github.com/linuxwacom/wacom-hid-descriptors and
file a new issue in that repo with the resulting sysinfo tarball. The README in that repo
has more information and instructions.

The .tablet files in this PR should then link to the sysinfo in this form:

# sysinfo.abCdE1234.tar.gz
# https://github.com/linuxwacom/wacom-hid-descriptors/issues/1234

A git grep sysinfo will show how this is currently used in existing data files.

See also https://github.com/linuxwacom/libwacom/wiki/Adding-a-new-device

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[whot]

The pen has 2 buttons, but only 1 was recognized by the system

I'm 99% sure that one of those buttons is an eraser button which doesn't count as logical button, so 1 is actually correct in this case.

[whot]

you can skip this line, the ModelName is really only useful on wacom devices.

[whot]

Suggested change

	Height=7.5
	Height=7

or 8, you get to pick :)

[whot]

those buttons refer to the buttons on the tablet itself (see e.g. the intuos tablets) - I don't think this is the case here, right?