Moving tooling and testing into Docker

[Rohaq]

I've made numerous changes that move dev tooling and running development environments almost entirely into docker, using the makefile to control it, and removing the need to have specific versions of PHP and tools installed on dev machines.

Right now the following is moved into docker containers:

• php
• composer
• npm
• npx

As part of this I have been and am continuing to remove anything that's calling external processes in the tests/bootstrap.php file, and instead moving it into calls in the makefile. So far these are done:

• Creating the test database
• Setting folder permissions inside the container

What needs to be done:

• Selenium - Considering moving this into a selenium docker container entirely, and bringing this up through the makefile