Add tag/integer pair for result to net_response (influxdata#3455)

plugins/inputs/net_response/README.md

@@ -47,11 +47,31 @@ verify text in the response.
     - result_code (int, success = 0, timeout = 1, connection_failed = 2, read_failed = 3, string_mismatch = 4)
     - result_type (string) **DEPRECATED in 1.7; use result tag**
     - string_found (boolean) **DEPRECATED in 1.4; use result tag**
+    - response_time (float, seconds)
+    - success (int) # success 0, failure 1
+    - result_code (int) # success = 0, Failure = 1
+    - [**DEPRECATED**] result_type (string) # success, timeout, connection_failed, read_failed, string_mismatch
+    - [**DEPRECATED**] string_found (boolean)
+
+### Tags:
+
+- All measurements have the following tags:
+    - server
+    - port
+    - protocol
+    - result_text (string) # This will contain the text from the now deprecated result_type
 
 ### Example Output:
 
 ```
 net_response,port=8086,protocol=tcp,result=success,server=localhost response_time=0.000092948,result_code=0i,result_type="success" 1525820185000000000
 net_response,port=8080,protocol=tcp,result=connection_failed,server=localhost result_code=2i,result_type="connection_failed" 1525820088000000000
 net_response,port=8080,protocol=udp,result=read_failed,server=localhost result_code=3i,result_type="read_failed",string_found=false 1525820088000000000
+net_response,server=influxdata.com,port=8080,protocol=tcp,host=localhost,result_text="timeout" result_code=1i,result_type="timeout" 1499310361000000000
+net_response,server=influxdata.com,port=443,protocol=tcp,host=localhost,result_text="success" result_code=0i,result_type="success",response_time=0.088703864 1499310361000000000
+net_response,protocol=tcp,host=localhost,server=this.domain.does.not.exist,port=443,result_text="connection_failed" result_code=1i,result_type="connection_failed" 1499310361000000000
+net_response,protocol=udp,host=localhost,server=influxdata.com,port=8080,result_text="read_failed" result_code=1i,result_type="read_failed" 1499310362000000000
+net_response,port=31338,protocol=udp,host=localhost,server=localhost,result_text="string_mismatch" result_code=1i,result_type="string_mismatch",string_found=false,response_time=0.00242682 1499310362000000000
+net_response,protocol=udp,host=localhost,server=localhost,port=31338,result_text="success" response_time=0.001128598,result_code=0i,result_type="success",string_found=true 1499310362000000000
+net_response,server=this.domain.does.not.exist,port=443,protocol=udp,host=localhost,result_text="connection_failed" result_code=1i,result_type="connection_failed" 1499310362000000000
 ```