Mock CAF::TextRender instead of ncm-metaconfig
force JSON::Any usage
load_module is tested extensively in CAF::TextRender
test properties module usage instead of direct properties render method
sane_templates tests are now part of the TextRender tests
adjust tiny test
rework TT tests
switch to CAF::TextRender
enhance error message with failure message
fix error unittests and resolve unitialized value warnings
Merge pull request #327 from stdweird/metaconfig_textrender_reload

ncm-metaconfig: Use CAF::TextRender for rendering