input: Map touch devices and tablets bound to an output (#3544)

* Map bound touch devices and tablets to an output

* Add "[[Auto]]" default option for auto detecting outputs for touch inputs

* Bind new monitors to configured touch and tablet devices

* Use Monitor::matchesStaticSelector in CConfigManager::getMonitorRuleFor

* Use Monitor::matchesStaticSelector in CCompositor::getMonitorFromString

src/helpers/WLClasses.hpp

@@ -259,6 +259,8 @@ struct STablet {
 
     std::string           name = "";
 
+    std::string           boundOutput = "";
+
     //
     bool operator==(const STablet& b) const {
         return wlrDevice == b.wlrDevice;