* feat(r): Added handling exception with ApiException class and document generation
* feat(r):enhancements to exception handling and documentation
* fix(r): fixes and reverting the man folder
* fix(r): minor fix of import statement
* fix(r): generated the docs file
* fix(r) minor doc casing fixes
* add r petstore test
* run test in node 1
* fix r bash test
* fix typo
* fix permission error
* fix r installation error
* use diff r repo
* install latest r
* install curl
* use sudo for apt-get
* add no manual
* add sudo install
* better caching
* export env
* update lib location
* create lib dir
* update r lib dir