Added required bundle Birt.core.ui and Eclipse.help.ui to target
platform
diff --git a/org.eclipse.stem/releng/org.eclipse.stem.releng.targetplatforms/STEM4.target b/org.eclipse.stem/releng/org.eclipse.stem.releng.targetplatforms/STEM4.target
index 833597b..d1b4a07 100644
--- a/org.eclipse.stem/releng/org.eclipse.stem.releng.targetplatforms/STEM4.target
+++ b/org.eclipse.stem/releng/org.eclipse.stem.releng.targetplatforms/STEM4.target
@@ -6,31 +6,36 @@
 	      	<unit id="org.eclipse.birt.feature.group" version="4.7.0.v201706222054"/>
 			<repository location="http://download.eclipse.org/releases/2019-09"/>
 	    </location>
-
 		<location includeAllPlatforms="true" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
+			<unit id="org.eclipse.birt.core.ui" version="4.7.0.v201706222054"/>
+			<repository location="http://download.eclipse.org/releases/2020-09"/>
+		</location>
+		<location includeAllPlatforms="true" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
+			<unit id="org.eclipse.birt.chart.device.extension" version="4.7.0.v201706222054"/>
+			<unit id="org.eclipse.birt.chart.device.swt" version="4.7.0.v201706222054"/>
+			<unit id="org.eclipse.birt.chart.engine" version="4.7.0.v201706222054"/>
+			<unit id="org.eclipse.birt.chart.engine.extension" version="4.7.0.v201706222054"/>
+			<unit id="org.eclipse.birt.core" version="4.7.0.v201706222054"/>
 			<unit id="org.eclipse.emf.sdk.feature.group" version="2.25.0.v20210114-1734"/>
 			<unit id="org.eclipse.xtext.sdk.feature.group" version="2.25.0.v20210111-0955"/>
 			<unit id="org.eclipse.zest.sdk.feature.group" version="1.7.0.201606061308"/>
-
-			<repository location="https://download.eclipse.org/releases/2021-03"/>
+			<unit id="org.eclipse.gef.feature.group" version="3.11.0.201606061308"/>
+			<repository location="http://download.eclipse.org/releases/2021-03/"/>
 		</location>
-
 		<location includeAllPlatforms="true" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
 			<unit id="org.apache.batik.dom" version="1.13.0.v20201124-1839"/>
 			<unit id="org.apache.batik.dom.svg" version="1.13.0.v20201124-1839"/>
 			<unit id="org.apache.batik.svggen" version="1.13.0.v20201124-1836"/>
 			<unit id="org.apache.commons.collections4" version="4.4.0.v20200420-1700"/>
 			<unit id="org.apache.commons.io" version="2.6.0.v20190123-2029"/>
-
 			<repository location="https://download.eclipse.org/tools/orbit/downloads/drops2/S20210216215844/repository/"/>
 		</location>
-
 		<location includeAllPlatforms="true" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
 			<unit id="org.eclipse.sdk.ide" version="4.18.0.I20201202-1800"/>
-			<unit id="org.eclipse.equinox.executable"/>
-			<unit id="org.eclipse.equinox.executable.feature.group"/>
-
+			<unit id="org.eclipse.equinox.executable" version="3.8.1000.v20200915-1508"/>
+			<unit id="org.eclipse.equinox.executable.feature.group" version="3.8.1000.v20200915-1508"/>
+			<unit id="org.eclipse.help.ui" version="4.2.100.v20200923-2139"/>
 			<repository location="http://download.eclipse.org/eclipse/updates/4.18"/>
 		</location>
 	</locations>
-</target>
\ No newline at end of file
+</target>
diff --git a/org.eclipse.stem/tests/org.eclipse.stem.tests.ui.ge/META-INF/MANIFEST.MF b/org.eclipse.stem/tests/org.eclipse.stem.tests.ui.ge/META-INF/MANIFEST.MF
index 5cee708..3fa95b6 100644
--- a/org.eclipse.stem/tests/org.eclipse.stem.tests.ui.ge/META-INF/MANIFEST.MF
+++ b/org.eclipse.stem/tests/org.eclipse.stem.tests.ui.ge/META-INF/MANIFEST.MF
@@ -9,7 +9,7 @@
  org.eclipse.stem.ui.ge,
  org.eclipse.stem.definitions,
  org.junit,
- org.eclipse.help.ui,
+ org.eclipse.help.ui;bundle-version="4.2.100",
  org.eclipse.stem.jobs;bundle-version="1.1.0"
 Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-11