Add missing files from IJSDK-103

tool_window/.gitignore

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+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio
+
+## Directory-based project format:
+#.idea/
+# if you remove the above rule, at least ignore the following:
+
+# User-specific stuff:
+ .idea/workspace.xml
+# .idea/tasks.xml
+# .idea/dictionaries
+
+# Sensitive or high-churn files:
+# .idea/dataSources.ids
+# .idea/dataSources.xml
+# .idea/sqlDataSources.xml
+# .idea/dynamic.xml
+ .idea/uiDesigner.xml
+
+# Gradle:
+# .idea/gradle.xml
+# .idea/libraries
+
+## File-based project format:
+*.ipr
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/

tool_window/src/myToolWindow/MyToolWindow.form

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+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="myToolWindow.MyToolWindowFactory">
+  <grid id="27dc6" binding="myToolWindowContent" layout-manager="GridLayoutManager" row-count="2" column-count="5" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="0" left="0" bottom="0" right="0"/>
+    <constraints>
+      <xy x="20" y="20" width="500" height="400"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <component id="9aa3f" class="javax.swing.JLabel" binding="currentDate">
+        <constraints>
+          <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Date"/>
+        </properties>
+      </component>
+      <component id="44be3" class="javax.swing.JLabel" binding="timeZone">
+        <constraints>
+          <grid row="0" column="2" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="TimeZone"/>
+        </properties>
+      </component>
+      <component id="f02af" class="javax.swing.JLabel" binding="currentTime">
+        <constraints>
+          <grid row="0" column="3" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Time"/>
+        </properties>
+      </component>
+      <component id="5fceb" class="javax.swing.JButton" binding="refreshToolWindowButton">
+        <constraints>
+          <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Refresh"/>
+        </properties>
+      </component>
+      <component id="3edc1" class="javax.swing.JButton" binding="hideToolWindowButton">
+        <constraints>
+          <grid row="1" column="3" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Hide"/>
+        </properties>
+      </component>
+      <hspacer id="8bf9c">
+        <constraints>
+          <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+      <hspacer id="26841">
+        <constraints>
+          <grid row="1" column="4" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </hspacer>
+    </children>
+  </grid>
+</form>