resilience tests: Simplify duplicated files and move code into erp5testnode

  The testsuite folder is used to change default software type while test slaprunner/kvm as
  currently the erp5testnode don't support diferent software type than default.

  Probably this folder will be removed or re-purposed in future.

software/erp5testnode/testsuite/kvm.cfg

+[buildout]
+extends = 
+   ../../kvm/development.cfg
+   testsuite.cfg
+
+parts += template-erp5testnode

software/erp5testnode/testsuite/slaprunner.cfg

+[buildout]
+extends = 
+   ../../slaprunner/development.cfg
+   testsuite.cfg
+
+parts += template-erp5testnode

software/slaprunner/test/software.cfg → software/erp5testnode/testsuite/testsuite.cfg

-[buildout]
-extends = ../development.cfg
-
-parts += template-erp5testnode
-
-# Change default software-type to be "test", so that it can be run using erp5testnode.
 [template-erp5testnode]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance.cfg.in

software/kvm/instance-for-erp5testnode.cfg.in

-[buildout]
-extends = ${template-default:output}
-
-[switch-softwaretype]
-default = $${:test}

software/kvm/software-for-erp5testnode.cfg

-[buildout]
-extends = development.cfg
-
-# Change default software-type to be "test", so that it can be run using erp5testnode.
-[template]
-recipe = slapos.recipe.template
-url = ${:_profile_base_location_}/instance-for-erp5testnode.cfg.in
-md5sum = 9e026495cbb0f5ea43adb2afb8574475
-output = ${buildout:directory}/template.cfg
-mode = 0644
-
-[template-default]
-recipe = slapos.recipe.template
-url = ${:_profile_base_location_}/instance.cfg.in
-md5sum = 061604d32cc626352dc3d221bdeaf804
-output = ${buildout:directory}/template-default.cfg
-mode = 0644