feat(API)：增加TsgAPI接口测试用例

Keyring策略文件、
可信证书颁发机构策略文件、
内容劫持策略文件、
访问阻断页面策略文件、
注入脚本策略文件、
流量转发目的地址配置和中间证书

01-TestCase/tsg_bfapi/policy_file_interface/InsertScriptsPolicy.robot

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+*** Settings ***
+Test Teardown    TeardownDelete    ${url}    profileIds    ${profileId}
+Force Tags    tsg_bf_api    Insert_Scripts
+Library    String
+Library    OperatingSystem
+Library    Selenium2Library
+Library    Collections
+Resource    ../../../02-Keyword/tsg_bfapi/common.robot
+Resource    ../../../02-Keyword/tsg_bfapi/policy_file_interface/functionalKeywords.robot
+Resource    ../../../03-Variable/bifangapivariable.txt
+
+*** Variables ***
+${url}    /policy/profile/insertscripts
+${profileId}    ${EMPTY}
+
+*** Test Cases ***
+Insert Scripts Policy CRUD case
+    
+    # 新增
+    ${response}    CreatePolicyFile2    ${url}    Insert Scripts-files/    Create-Insert Scripts-test-1.js   insert
+
+    # 查询
+    ${profileId}    Get From Dictionary    ${response}    profileId
+    ${profileName}    Get From Dictionary    ${response}    profileName
+    QueryPolicyFile    ${url}    profileId=${profileId}&profileName=${profileName}
+    
+    # 修改
+    ${reqHeader_edit}    Set Variable   {"isValid":1,"format":"css","opAction":"update","profileName":"test_edit","profileId":"${profileId}","returnData":1}
+    UpdatePolicyFile    ${url}    Insert Scripts-files/    Create-Insert Scripts-test.css   ${reqHeader_edit}
+    
+