Iss #2 - Add base CVE service for retrieving data for resources.

This includes some sample stubbed data from the spreadsheet of complete and public CVE data. This will be used to build and augment CVE data, and serves as a platform to develop from.

src/main/java/org/eclipsefoundation/cve/config/CveSourceServiceProvider.java

+/*******************************************************************************
+ * Copyright (C) 2022 Eclipse Foundation
+ * 
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ * 
+ * SPDX-License-Identifier: EPL-2.0
+ ******************************************************************************/
+package org.eclipsefoundation.cve.config;
+
+import javax.enterprise.context.Dependent;
+import javax.enterprise.inject.Produces;
+
+import org.eclipsefoundation.cve.service.CveSourceService;
+import org.eclipsefoundation.cve.service.impl.DefaultCveSourceService;
+import org.eclipsefoundation.cve.service.impl.StubbedCveSourceService;
+
+import io.quarkus.arc.DefaultBean;
+import io.quarkus.arc.properties.IfBuildProperty;
+
+/**
+ * Provider for CVE source service, allows for swapping back to stubbed service for tests/development to avoid having to
+ * use real data.
+ * 
+ * @author Martin Lowe
+ *
+ */
+@Dependent
+public class CveSourceServiceProvider {
+    public static final String PROVIDER_TYPE_PROPERTY_NAME = "eclipse.cve.provider";
+
+    @Produces
+    @DefaultBean
+    public CveSourceService defaultService() {
+        return new DefaultCveSourceService();
+    }
+
+    @Produces
+    @IfBuildProperty(name = PROVIDER_TYPE_PROPERTY_NAME, stringValue = "stubbed")
+    public CveSourceService stubbedService() {
+        return new StubbedCveSourceService();
+    }
+}