build: concantenate js relative files as well

Author: abose

gulpfile.js/index.js

@@ -562,7 +562,8 @@ function inlineTextRequire(file, content, srcDir) {
                 textContentMap[requirePath] = fileContent;
                 textContent = fileContent;
             }
-            if(requirePath.endsWith(".js") || excludeSuffixPathsInlining.some(ext => requirePath.endsWith(ext))) {
+            if((requirePath.endsWith(".js") && !requirePath.includes("./")) // js files that are relative paths are ok
+                || excludeSuffixPathsInlining.some(ext => requirePath.endsWith(ext))) {
                 console.warn("Not inlining JS/JSON file:", requirePath, filePath);
             } else {
                 console.log("Inlining", requireStatement);