Release 0.5.0

[PokhodenkoSA]

• Doc improvements #224
• Update change log
• Update gh-pages

CHANGELOG:
Add:

• dparray
• USM
• Examples Examples added #197
• Documentation improvements Doc improvements #224

Change:

• Rename DPPL to DPCTL Rename dppl to dpctl #201
• Moved SyclProgram and SyclKernel out of dpctl into dpctl.program Feature/program #199

[diptorupd]

Added examples #197

[diptorupd]

renamed DPPL to DPCTL. #201

[diptorupd]

Moved SyclProgram and SyclKernel out of dpctl into dpctl.program #199

[diptorupd]

@PokhodenkoSA I have updated the documentation files (#224 ) a bit to match the upcoming 0.5.0 release. #224 should be merged before the release. We will update the gh-pages after the release so that the version is displayed correctly in the Sphinx pages.

[diptorupd]

documentation is now up-to-date.