libwacom: Add recipe

[jwillikers]

Specify library name and version: libwacom/2.8.0

libwacom is a library to identify graphics tablets and their model-specific features.

It is an optional library for libinput.

Requires #20358.

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• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[conan-center-bot]

Conan v1 pipeline ❌

Failure in build 2 (c5fd860b2b8f347762447e18da27fd1b88c35e35):

• libwacom/2.8.0:
  Error running command conan info libwacom/2.8.0@#34bd2908a48c33534203503a840ae866 --json {jsonName} -pr {profileName}:

  [settings]
  arch=x86_64
  build_type=Release
  compiler=gcc
  compiler.libcxx=libstdc++11
  compiler.version=5
  os=Linux
  
  ...
  WARN: pcre2/10.42: requirement zlib/[>=1.2.11 <2] overridden by glib/2.78.0 to zlib/1.3 
  ERROR: Failed requirement 'libgudev/238' from 'libwacom/2.8.0'
  ERROR: Unable to find 'libgudev/238' in remotes
  

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