jobs: explicitly enable ansi color wrapper

For some reason (jenkins upgrade?), output is not colored anymore.
Explicitly enable the ansi color wrapper in the jjb configs, where we
have such colors in the output.

Change-Id: I2d3faaf608ae9d12573f5c0f740ff7ee4b33358e

jobs/gerrit-lint.yml

@@ -145,4 +145,8 @@
     builders:
       - shell: '{obj:cmd}'
 
+    wrappers:
+    - ansicolor:
+        colormap: xterm
+
 # vim: expandtab tabstop=2 shiftwidth=2

jobs/ttcn3-testsuites-kernel-git.yml

@@ -125,5 +125,8 @@
         num-to-keep: 120
         artifact-days-to-keep: -1
         artifact-num-to-keep: -1
+    wrappers:
+    - ansicolor:
+        colormap: xterm
 
 # vim: expandtab tabstop=2 shiftwidth=2

jobs/ttcn3-testsuites.yml

@@ -507,5 +507,8 @@
         num-to-keep: 120
         artifact-days-to-keep: -1
         artifact-num-to-keep: -1
+    wrappers:
+    - ansicolor:
+        colormap: xterm
 
 # vim: expandtab tabstop=2 shiftwidth=2