support source files with spaces

Author: pgaglani1

gp-maven-plugin/src/main/java/com/ibm/g11n/pipeline/maven/GPBaseMojo.java

@@ -207,7 +207,7 @@ private String pathToBundleId(ResourceType type, String path) {
         String pkgName = parent == null ? "" :
             parent.getPath().replace(File.separatorChar, '.');
 
-        String fileName = f.getName();
+        String fileName = f.getName().replaceAll(" ", "_");
         if (type == ResourceType.JAVA) {
             int dotIdx = fileName.indexOf('.');
             if (dotIdx >= 0) {