[Site] Deleted NativeAPI page, which is now a section of nativePackaging page. Fix sensitivity animation svg.

[Site] completed DocSiteMap pages with every page , add common intro from NativeDocPageCommons.scala  for R Python and Cplusplus pages,

[Site] removed CARE troubleshooting page, add its content in Native packaging page. Remove CARE parts in R python pages

[Site] Remove CARE stuf from R and Python, put into nativePackaging detail page. Partial factorisation of NativePackaging content.