Add CBA_fnc_prettyFormat

[commy2]

When merged this pull request will:

• Implements close New function: prettyFormat #1519
• but with tests

CLICK

execVM "x\cba\addons\strings\test.sqf"

...
19:58:09 [CBA] (strings) LOG: Testing CBA_fnc_prettyFormat
19:58:09 [CBA] (strings) Test OK: (CBA_fnc_prettyFormat is defined) x\cba\addons\strings\test_prettyFormat.sqf:13
19:58:09 [CBA] (strings) Test OK: (_val isEqualTo _exp) x\cba\addons\strings\test_prettyFormat.sqf:17
19:58:09 [CBA] (strings) Test OK: (_val isEqualTo _exp) x\cba\addons\strings\test_prettyFormat.sqf:21
19:58:09 [CBA] (strings) Test OK: (_val isEqualTo _exp) x\cba\addons\strings\test_prettyFormat.sqf:36
19:58:09 [CBA] (strings) Test OK: (_val isEqualTo _exp) x\cba\addons\strings\test_prettyFormat.sqf:40
19:58:09 [CBA] (strings) Test OK: (_val isEqualTo _exp) x\cba\addons\strings\test_prettyFormat.sqf:50
...