Enhancements for common templates

Enhancements for common templates

_labels.tpl:
- support of additional customized labels in
  common.labels,
  common.matchLabels,
  common.selectors
  common.templateMetadata
- support of name suffix in common.resourceMetadata
_name.tpl:
- support of name suffix in
  common.name,
  common.fullname,
  common.fullnameExplicit
_service.tpl
- support of additional customized labels in
  common.serviceMetadata, common.*service
- support of sessionAffinity in
  common.service
New common template:
_aafconfig
- new common template to enable charts for AAF
  includes templates for init container, volumemounts, pvc and pv

Issue-ID: SDNC-1088
Change-Id: Icbaa806608f9e1f36f0e47686668ae3632d3f2b0
Signed-off-by: Alexander Dehn <alexander.dehn@highstreet-technologies.com>
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>