Port pcp module in d8

Hi Akashjain,

thanks so much for taking the effort to port the module to Drupal 8.
Apologies for not being able to review the code sooner.

I just reviewed the code and I must say that I'm impressed ;)
For now, it's good to go. It still needs a bit of love, but let's create the D8 version now and polish it later.

Some things that are missing:

• A link in to the config page from the modules page
• A page to change the settings (it's not showing up in the interface yet)

Plus, I'd like to change some texts

• '#title' => $this->t('GENERAL SETTINGS'), to '#title' => $this->t('General settings'),
• description: 'pcp module use to show user field status.' to description: 'Displays whether the user completed all profile fields.'
• Also, I'd the to be consistent with naming the module. Now Profile Completeness Percentage / PCP / pcp are used randomly. I would suggest to write the full name everywhere (except for system names / variable names).

Here it is: https://www.drupal.org/node/2399149

I'll leave this issue open for the follow-ups. Feel free to commit them yourself, since you have access.

Hi Akashjain,
Nice work.. I have tried to enable this module in my local setup. it was giving error. As now "ConfigFormBase" is required to implement one more function "getEditableConfigNames()" which returns configuration settings.

I am attaching patch for same.