添加 cml-interface-parser include 功能相关 case

packages/cml-interface-parser/test/docs/include-interface.interface

+<include src="./index.interface"></include>

packages/cml-interface-parser/test/test.js

@@ -4,7 +4,7 @@ const expect = chai.expect;
 const Parser = require('../index');
 
 describe('parser check', function() {
-  it('should pass check', function() {
+  it('normal interface file: should pass check', function() {
     let parser = new Parser({filePath: path.resolve(__dirname, './docs/index.interface')});
     let results = parser.getParseResults();
     expect(results).to.have.deep.property('vars', ['cstyle', 'bottomOffset', 'scrollDirection']);
@@ -17,4 +17,17 @@ describe('parser check', function() {
       name: 'scrollDirection', valueType: 'String', props: [], typeChain: []
     }]);
   });
+  it('include interface file: should pass check', function() {
+    let parser = new Parser({filePath: path.resolve(__dirname, './docs/include-interface.interface')});
+    let results = parser.getParseResults();
+    expect(results).to.have.deep.property('vars', ['cstyle', 'bottomOffset', 'scrollDirection']);
+    expect(results).to.have.deep.property('methods', ['customscroll', 'scrolltobottom']);
+    expect(results).to.have.deep.property('props', [{
+      name: 'cstyle', valueType: 'String', props: [], typeChain: []
+    }, {
+      name: 'bottomOffset', valueType: 'Number', props: [], typeChain: []
+    }, {
+      name: 'scrollDirection', valueType: 'String', props: [], typeChain: []
+    }]);
+  });
 });