FINERACT-2216: add github project metadata

1. Link to project homepage at https://fineract.apache.org
2. Add some tags/labels/topics

See also:

* https://github.com/apache/infrastructure-asfyaml#repo_meta
* https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/classifying-your-repository-with-topics

.asf.yaml

@@ -0,0 +1,17 @@
+github:
+  description: "Apache Fineract"
+  homepage: https://fineract.apache.org
+  labels:
+    - apache
+    - banking
+    - finance
+    - fintech
+    - group-lending
+    - group-savings
+    - java
+    - lending
+    - loans
+    - microfinance
+    - savings
+    - social-impact
+    - tech4good

build.gradle

@@ -325,7 +325,9 @@ allprojects  {
             '**/images/diag-*.svg',
             '**/*.avsc',
             "**/generated/**/*MapperImpl.java",
-            '**/META-INF/fineract-test.config'
+            '**/META-INF/fineract-test.config',
+            // Apache-specific GitHub metadata settings file
+            '/.asf.yaml'
         ]
     }
 }