add run configurations (#6243)

.idea/runConfigurations/flutter_gallery.xml

+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="flutter_gallery" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="filePath" value="$PROJECT_DIR$/examples/flutter_gallery/lib/main.dart" />
+    <method />
+  </configuration>
+</component>
\ No newline at end of file

.idea/runConfigurations/flutter_tools.xml

+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="flutter_tools" type="DartCommandLineRunConfigurationType" factoryName="Dart Command Line Application">
+    <option name="filePath" value="$PROJECT_DIR$/packages/flutter_tools/bin/flutter_tools.dart" />
+    <method />
+  </configuration>
+</component>
\ No newline at end of file

.idea/runConfigurations/hello_world.xml

+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="hello_world" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="filePath" value="$PROJECT_DIR$/examples/hello_world/lib/main.dart" />
+    <method />
+  </configuration>
+</component>
\ No newline at end of file

examples/hello_world/hello_world.iml

@@ -4,7 +4,6 @@
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/.pub" />
-      <excludeFolder url="file://$MODULE_DIR$/build" />
       <excludeFolder url="file://$MODULE_DIR$/packages" />
       <excludeFolder url="file://$MODULE_DIR$/test/packages" />
     </content>

packages/flutter_tools/flutter_tools.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/bin/packages" />
+      <excludeFolder url="file://$MODULE_DIR$/packages" />
+      <excludeFolder url="file://$MODULE_DIR$/test/packages" />
+      <excludeFolder url="file://$MODULE_DIR$/test/src/ios/packages" />
+      <excludeFolder url="file://$MODULE_DIR$/test/src/packages" />
+      <excludeFolder url="file://$MODULE_DIR$/tool/packages" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart SDK" level="application" />
+    <orderEntry type="library" name="Dart Packages" level="project" />
+  </component>
+</module>
\ No newline at end of file