PipeScript.PipeScriptType: Adding 'ExtensionScript' categorization (Fixes #313)

Author: StartAutomating

PipeScript.types.ps1xml

@@ -1161,9 +1161,12 @@ $this.Parent.GetType().Name -in 'AssignmentStatementAST', 'HashtableAST'
 elseif ($this.Source -match "\.ps1{0,1}\.(?<ext>[^.]+$)") {
     "SourceGenerator"
 }
-elseif (($this.Source -match '\.[^\.\\/]+\.ps1$') -or ($this.Source -match 'build\.ps1$')) {
+elseif ($this.Source -match '(?<=(?>^|\.))build\.ps1$') {
     "BuildScript"
 }
+elseif (($this.Source -match '\.[^\.\\/]+\.ps1$')) {
+    "ExtensionScript"
+}
 elseif ($this.Source) {
     "PipeScriptFile"
 }