Revise path resolution yet again

* Abandon the old algorithm
* Base algorithm on finding the "anchor" node in the model
* Anchor node can be:
  * "Root" (root of model),
  * First Ancestor (of the PathId) that matches PathId first element
  * A unique element in the SymTab that matches PathId first element
* Don't resolve every path reference every time, use the resolution
  map built so far to resolve common paths.
* Refactor into functions with names that make sense
* Still passes all path resolution tests in all modules.

Signed-off-by: reidspencer <reid.spencer@yoppworks.com>

language/src/main/scala/com/reactific/riddl/language/CommonOptions.scala

@@ -12,6 +12,8 @@ case class CommonOptions(
   verbose: Boolean = false,
   dryRun: Boolean = false,
   quiet: Boolean = false,
+  // FIXME: Add this and its reader, etc: showInfoMessages: Boolean = true,
+  // TODO: Add a "maxParallelParsing" option to limit parallel included file parsing (not implemented yet)
   showWarnings: Boolean = true,
   showMissingWarnings: Boolean = true,
   showStyleWarnings: Boolean = true,
@@ -20,7 +22,7 @@ case class CommonOptions(
   pluginsDir: Option[Path] = None,
   sortMessagesByLocation: Boolean = false,
   groupMessagesByKind: Boolean = true,
-  noANSIMessages: Boolean = false,
+  noANSIMessages: Boolean = false
 )
 
 object CommonOptions {

language/src/main/scala/com/reactific/riddl/language/Messages.scala

@@ -207,6 +207,7 @@ object Messages {
       msgs.isEmpty || !msgs.exists(_.kind >= Warning)
     }
     def hasErrors: Boolean = { msgs.nonEmpty && msgs.exists(_.kind >= Error) }
+    def justInfo: Messages = msgs.filter(_.isInfo)
     def justMissing: Messages = msgs.filter(_.isMissing)
     def justStyle: Messages = msgs.filter(_.isStyle)
     def justUsage: Messages = msgs.filter(_.isUsage)
@@ -308,6 +309,7 @@ object Messages {
           if commonOptions.showUsageWarnings then {
             msgs.append(msg)
           }
+        // FIXME: filter out Info messages if commonOptions.showInfoMssages is false
         case _ => msgs.append(msg)
       }
       this