feat(#686): add/remove user-edit rolebinding in che based on toggle

[MatousJobanek]

based on the information whether the user has che.edit.rights toggle enabled it adds or removes the user-edit rolebinding for the che namespace. The body that is sent to OS (when doing POST) is:

kind: RoleBinding
metadata:
  name: user-edit
  namespace: ${ns-base-name}-che
roleRef:
  name: edit
subjects:
- kind: User
  name: ${os-username}
userNames:
- ${os-username}

Fixes: #686

[fabric8cd]

This PR changes one or more of the template files. These changes are now available for testing: Launch in OpenShift.io and click the update tenant button

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@9c2ea27). Click here to learn what that means.
The diff coverage is 81.47%.

@@            Coverage Diff            @@
##             master     #741   +/-   ##
=========================================
  Coverage          ?   75.46%           
=========================================
  Files             ?       37           
  Lines             ?     3037           
  Branches          ?        0           
=========================================
  Hits              ?     2292           
  Misses            ?      557           
  Partials          ?      188

Impacted Files	Coverage Δ
auth/service.go	73.73% <ø> (ø)
toggles/toggles.go	30.61% <ø> (ø)
controller/convert.go	100% <100%> (ø)
jsonapi/jsonapi_utility.go	70.1% <100%> (ø)
configuration/configuration.go	71.25% <100%> (ø)
migration/migration.go	38.13% <100%> (ø)
controller/update.go	69.14% <100%> (ø)
controller/tenants.go	63.96% <46.87%> (ø)
environment/template.go	88.4% <50%> (ø)
controller/tenant.go	71.05% <71.13%> (ø)
... and 14 more

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[fabric8cd]

This PR changes one or more of the template files. These changes are now available for testing: Launch in OpenShift.io and click the update tenant button