Docs update

Merge stable-1.13 into master

It looks slightly better when rendered

I saw such paragraph in MariaDB documentation and thought it may be useful.

Merge stable-1.12 into stable-1.13

Merge stable-1.11 into stable-1.12

Fix compliation on gcc 12

Replace decltype() with specific type.

typo fixes

Merge stable-1.13 into master

Turn libunwind off for valgrind tests

It's set in our CI scripts to 0 by default, it's unnecessary to duplicate it.

Add deleted assignment operator for persistent_aware ptr

implementation details were moved into a "private" comments.

[doxygen] Add description for primitives group.

Add pmreorder tests for atomic persistent-aware ptr

Atomic persistent-aware pointer

Add UT to test atomic_persistent_aware_ptr with both options.

utils: add pipeline for Jenkins

Added new jenkinsfile and pipeline to libpmemobj-cpp repository meant to start pmem jobs

Signed-off-by: tszczypx <tomaszx.szczypiorowski@intel.com>

docs: extend docs for Data View group and its classes

Extend allocation feature docs

[doxygen] add description for "exceptions" group

Documentation tweaks