Make target board autoselection configurable via Preferences

The setting is off by default.

Per-sketch board autoselection could work better because:
* Most 3rd party boards ship with generic USB to serial converters, making autoselection useless
* The port menu is not easily reachable as it is in Create

Author: facchinm

Diff for: app/src/cc/arduino/view/preferences/Preferences.java

@@ -133,6 +133,7 @@ private void initComponents() {
     verifyUploadBox = new javax.swing.JCheckBox();
     externalEditorBox = new javax.swing.JCheckBox();
     cacheCompiledCore = new javax.swing.JCheckBox();
+    autoselectBoard = new javax.swing.JCheckBox();
     checkUpdatesBox = new javax.swing.JCheckBox();
     updateExtensionBox = new javax.swing.JCheckBox();
     saveVerifyUploadBox = new javax.swing.JCheckBox();
@@ -280,6 +281,9 @@ public void mouseEntered(java.awt.event.MouseEvent evt) {
     cacheCompiledCore.setText(tr("Aggressively cache compiled core"));
     checkboxesContainer.add(cacheCompiledCore);
 
+    autoselectBoard.setText(tr("Automatically use the correct target when selecting a known serial port"));
+    checkboxesContainer.add(autoselectBoard);
+
     checkUpdatesBox.setText(tr("Check for updates on startup"));
     checkboxesContainer.add(checkUpdatesBox);
 
@@ -731,6 +735,7 @@ private void autoScaleCheckBoxItemStateChanged(java.awt.event.ItemEvent evt) {//
   private javax.swing.JButton extendedAdditionalUrlFieldWindow;
   private javax.swing.JCheckBox externalEditorBox;
   private javax.swing.JCheckBox cacheCompiledCore;
+  private javax.swing.JCheckBox autoselectBoard;
   private javax.swing.JTextField fontSizeField;
   private javax.swing.JLabel fontSizeLabel;
   private javax.swing.JLabel jLabel1;
@@ -836,6 +841,8 @@ private void savePreferencesData() {
 
     PreferencesData.setBoolean("compiler.cache_core", cacheCompiledCore.isSelected());
 
+    PreferencesData.setBoolean("editor.autoselectboard", autoselectBoard.isSelected());
+
     PreferencesData.setBoolean("update.check", checkUpdatesBox.isSelected());
 
     PreferencesData.setBoolean("editor.update_extension", updateExtensionBox.isSelected());
@@ -908,6 +915,8 @@ private void showPrerefencesData() {
 
     cacheCompiledCore.setSelected(PreferencesData.get("compiler.cache_core") == null || PreferencesData.getBoolean("compiler.cache_core"));
 
+    autoselectBoard.setSelected(PreferencesData.getBoolean("editor.autoselectboard"));
+
     checkUpdatesBox.setSelected(PreferencesData.getBoolean("update.check"));
 
     updateExtensionBox.setSelected(PreferencesData.get("editor.update_extension") == null || PreferencesData.getBoolean("editor.update_extension"));

Diff for: app/src/processing/app/Editor.java

@@ -1107,8 +1107,8 @@ private void selectSerialPort(String name, String boardId) {
         // ignore
       }
     }
-    
-    if (boardId != null) {
+
+    if (boardId != null && PreferencesData.getBoolean("editor.autoselectboard")) {
       TargetBoard targetBoard = BaseNoGui.getPlatform().resolveBoardById(BaseNoGui.packages, boardId);
       if (targetBoard != null) {
         base.selectTargetBoard(targetBoard);