feat: Increase code quality

feat: Standardize configurations

Relates to #27 (closed)

Relates to #28 (closed)

src/main/java/org/eclipsefoundation/geoip/client/config/EclipseMaxmindSubnetConfig.java

+/*********************************************************************
+* Copyright (c) 2023 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/
+*
+* Author: Zachary Sabourin <zachary.sabourin@eclipse-foundation.org>
+*
+* SPDX-License-Identifier: EPL-2.0
+**********************************************************************/
+package org.eclipsefoundation.geoip.client.config;
+
+import io.smallrye.config.ConfigMapping;
+import io.smallrye.config.WithDefault;
+
+/**
+ * Config mapper for eclipse maxmind file locations. Contains filepaths for
+ * ipv4, ipv6, and countries files.
+ */
+@ConfigMapping(prefix = "eclipse.maxmind.subnet")
+public interface EclipseMaxmindSubnetConfig {
+
+    @WithDefault(value = "/tmp/maxmind/db/GeoLite2-Country-Blocks-IPv4.csv")
+    String ipv4FilePath();
+
+    @WithDefault(value = "/tmp/maxmind/db/GeoLite2-Country-Blocks-IPv6.csv")
+    String ipv6FilePath();
+
+    @WithDefault(value = "/tmp/maxmind/db/GeoLite2-Country-Locations-en.csv")
+    String countriesFilePath();
+}