Add Linux AArch64 wheel build support

Enable fileinfo attributes on windows (ParallelSSH#142)

* Enable fileinfo and statinfo attributes on windows
* Updated changelog

Method pref (ParallelSSH#140)

* Added new libssh2 1.9.0 error codes as exceptions.
* Added session method and supported algorithm functions - resolves ParallelSSH#128
* Updated changelog
* Updated documentation

Updated documentation (ParallelSSH#139)

Sftp attrs (ParallelSSH#124)

* Minor fixes for kdb int
* Added SFTP attribute flags. Updated sftp tests - resolves ParallelSSH#119
* Updated change log

Circleci (ParallelSSH#116)

* Added circleci config. Updated travis cfg

Manifest (ParallelSSH#115)

* Updated travis cfg
* Updated manifest

Readline (ParallelSSH#111)

* Added line parsing to utils. Added utils line parsing tests.
* Updated changelog.

Fix manylinux build (ParallelSSH#106)

Fix linux wheel build versioning information.