Add unit test local cpu guide and enable base testcase (#1566)

### What this PR does / why we need it?
Use Base test and cleanup all manaul patch code
- Cleanup EPLB config to avoid tmp test file
- Use BaseTest with global cache
- Add license
- Add a doc to setup unit test in local env 

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
CI passed

Signed-off-by: Yikun Jiang <yikunkero@gmail.com>

tests/ut/ops/expert_map.json

@@ -0,0 +1,17 @@
+{
+    "moe_layer_count":
+    1,
+    "layer_list": [{
+        "layer_id":
+        0,
+        "device_count":
+        2,
+        "device_list": [{
+            "device_id": 0,
+            "device_expert": [7, 2, 0, 3, 5]
+        }, {
+            "device_id": 1,
+            "device_expert": [6, 1, 4, 7, 2]
+        }]
+    }]
+}