Dynamic Plugin needs to be externally consumable - Update Webpack

As an adopter of the @openshift-console/dynamic-plugin-sdk I want to easily integrate into my development pipeline so that I can extend the OCP console.

Trying to pull in the dynamic-plugin-sdk into ACM is proving to be problematic. We would have to move to older dependencies. Integrating with webpack and typescript requires a very specific setup.

The dynamic-plugin-sdk has only really been used internally by OCP and is strongly tied to the setup and dependencies of OCP. For the dynamic-plugin-sdk to be externally consumable by adopters, it should be as easy to use as other webpack plugins such as HtmlWebpackPlugin or CompressionPlugin.

Acceptance Criteria

• Uses up to date webpack and dependencies - not tied to specific versions OCP console uses
• Includes it's own dependencies - does not require adopters to include those dependencies
• The dynamic demo plugin should be updated to use newer dependencies and use the plugin without a bunch of tweaks to tsconfig paths. 

Currently

• requires old dependencies including a beta version of webpack 
  • webpack 5.0.0-beta.16 → 5.51.0
  • webpack-cli 4.5.x → 4.8.x
  • webpack-dev-server ^3.11.2 → ^4.0.0
  • ts-loader 6.2.2 → 9.2.5