Add M2E to the platform targets

This allows us to test the M2E lifecycle integration

Author: jeffgbutler

eclipse/releng/2018-12.target

@@ -2,11 +2,12 @@
 <?pde version="3.8"?>
 <target includeMode="feature" name="2018-12">
 	<locations>
-		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
+		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="false" type="InstallableUnit">
 			<repository location="http://download.eclipse.org/releases/2018-12"/>
 			<unit id="org.eclipse.jdt.feature.group" version="3.16.0.v20181206-1038"/>
 			<unit id="org.eclipse.wst.xml_ui.feature.feature.group" version="3.12.0.v201811192212"/>
 			<unit id="org.eclipse.platform.feature.group" version="4.10.0.v20181206-0815"/>
+			<unit id="org.eclipse.m2e.feature.feature.group" version="1.10.0.20181127-2120"/>
 		</location>
 	</locations>
 	<targetJRE path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>

eclipse/releng/2019-12.target

@@ -2,11 +2,12 @@
 <?pde version="3.8"?>
 <target includeMode="feature" name="2019-12">
 	<locations>
-		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
+		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="false" type="InstallableUnit">
 			<repository location="http://download.eclipse.org/releases/2019-12"/>
 			<unit id="org.eclipse.jdt.feature.group" version="3.18.200.v20191210-0610"/>
 			<unit id="org.eclipse.wst.xml_ui.feature.feature.group" version="3.16.0.v201911262138"/>
 			<unit id="org.eclipse.platform.feature.group" version="4.14.0.v20191210-0610"/>
+			<unit id="org.eclipse.m2e.feature.feature.group" version="1.14.0.20191209-1925"/>
 		</location>
 	</locations>
 	<targetJRE path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>

eclipse/releng/2021-06.target

@@ -2,11 +2,12 @@
 <?pde version="3.8"?>
 <target includeMode="feature" name="2021-06">
 	<locations>
-		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
+		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="false" type="InstallableUnit">
 			<repository location="http://download.eclipse.org/releases/2021-06/"/>
 			<unit id="org.eclipse.jdt.feature.group" version="3.18.800.v20210611-1600"/>
 			<unit id="org.eclipse.wst.xml_ui.feature.feature.group" version="3.22.0.v202103232331"/>
 			<unit id="org.eclipse.platform.feature.group" version="4.20.0.v20210611-1600"/>
+			<unit id="org.eclipse.m2e.feature.feature.group" version="1.18.0.20210603-1206"/>
 		</location>
 	</locations>
 	<targetJRE path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>

eclipse/releng/2021-12.target

@@ -2,11 +2,12 @@
 <?pde version="3.8"?>
 <target includeMode="feature" name="2021-12">
 	<locations>
-		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
+		<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="false" type="InstallableUnit">
 			<repository location="http://download.eclipse.org/releases/2021-12/"/>
 			<unit id="org.eclipse.jdt.feature.group" version="3.18.1000.v20211124-1800"/>
 			<unit id="org.eclipse.wst.xml_ui.feature.feature.group" version="3.24.0.v202111190506"/>
 			<unit id="org.eclipse.platform.feature.group" version="4.22.0.v20211124-1800"/>
+			<unit id="org.eclipse.m2e.feature.feature.group" version="1.19.0.20211116-0804"/>
 		</location>
 	</locations>
 	<targetJRE path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>