[Login] Add testing scripts to login to the Zabbix Servers.
[Login] Fix messages.
[Login] Change order of logining.
[getGroup] Add script for getting Hostgroup.
[getGroup] Fix wrong variable and url.

TOKEN_3 ->
TOKEN_6

TOKEN_4 ->
TOKEN_7

http://10.0.3.21/ ->
http://10.0.3.61/

http://10.0.3.21/ ->
http://10.0.3.71/
[getGroup] Show hosts which is member of Hostgroup.
[Login] Get token for zabbix server 1,4 and 5.
[getGroup] Store result to variable value.
[getGroup] Add expect values.
[getGroup] Fix expect values.
[getGroup] Add compare sequence.
[getTriggerItem] Add script for check value of trigger and item.
[getTriggerItem] Add expect values.
[getTriggerItem] Add compare sequence.
[getGroup] Use double quotation in variable of compare.
[runTest] Merge script for the test.
[for_test/README] Add readme for test directory.