feat/update-free-version-for-pro-upgrade-prompts

Promotional feature for free to pro upgrade:

In this feature we added pro features template/overview in project manager lite. We can get a simple overview of pro features & can go for buy the product from this feature. We added pro related menus (like: woo-project, calendar, modules, progress, reports etc.) with pro badge. We also added task pro menus (like: kanban board, gant-chart, invoice, settings etc.) with pro badge. We try to added pro relevant fields with pro lock feature. Also, add a popup modal with swiffy slider.

[x] Wp menu test with hover submenu.
[x] Test router & router view.
[x] Task all menus, menu router with router view.
[x] Upgrader popup with slider.
[x] Upgrader tooltip.
[x] Pro fields with lock feature.
[x] My Tasks -> Reports page overview ( Not available now )
[x] Task popup badge overlay ( done but decision pending )

If all's are working fine then kindly added check mark in the task.

Changes proposed in this Pull Request:

Video: https://www.loom.com/share/0867ec94f8fc406493bafbb6cef62894

Changelog entry

Added project manager promotional feature.

Issue Link: https://github.com/weDevsOfficial/pm-pro/issues/106

weDevsOfficial / wp-project-manager