update to class getters/setters and meta module

rename factory functions.

class getters now send is_string parameter.

each property type for each class now has separate meta function.

lib/bus.ps1

@@ -2,26 +2,28 @@
 
 class Bus {
     [Int]$id
-    [Array]$bool_params
-    [Array]$float_params
 
     # Constructor
     Bus ([Int]$id)
     {
         $this.id = $id
-        $this.bool_params = @('mono', 'mute')
-        $this.float_params = @('gain')
-        AddPublicMembers($this)
+
+        AddBoolMembers -PARAMS @('mono', 'mute')
+        AddFloatMembers -PARAMS @('gain')
+    }
+
+    [Single] Getter($cmd) {
+        return Param_Get -PARAM $cmd -IS_STRING $false
+    }
+
+    [String] Getter_String($cmd) {
+        return Param_Get -PARAM $cmd -IS_STRING $true
     }
 
     [void] Setter($cmd, $set) {
         Param_Set -PARAM $cmd -VALUE $set
     }
 
-    [Single] Getter($cmd) {
-        return Param_Get -PARAM $cmd
-    }
-
     [string] cmd ($arg) {
         return "Bus[" + $this.id + "].$arg"
     }
@@ -47,7 +49,7 @@ class VirtualBus : Bus {
     }
 }
 
-Function Buses {
+Function Make_Buses {
     [System.Collections.ArrayList]$bus = @()
     0..$($layout.p_out + $layout.v_out -1) | ForEach-Object {
         if ($_ -lt $layout.p_out) { [void]$bus.Add([PhysicalBus]::new($_)) }