WIP: Adds Static Pointers to Active Managers Accessible Everywhere

[Kfeavel]

This fixes the issue of not having access to any of the managers where they are needed. Now each class has a static pointer to the active manager that can be accessed via the ClassName::activeManager syntax

[lgtm-com]

This pull request introduces 3 alerts when merging 1a1d1bc into de0eef7 - view on LGTM.com

new alerts:

• 2 for FIXME comment
• 1 for Returning stack-allocated memory

[lgtm-com]

This pull request introduces 4 alerts when merging 053b34d into de0eef7 - view on LGTM.com

new alerts:

• 3 for FIXME comment
• 1 for Returning stack-allocated memory

[lgtm-com]

This pull request introduces 4 alerts when merging bde22c8 into cf84489 - view on LGTM.com

new alerts:

• 3 for FIXME comment
• 1 for Returning stack-allocated memory

[lgtm-com]

This pull request introduces 4 alerts when merging a6ed755 into cf84489 - view on LGTM.com

new alerts:

• 3 for FIXME comment
• 1 for Returning stack-allocated memory

[lgtm-com]

This pull request introduces 5 alerts when merging e6a4903 into cf84489 - view on LGTM.com

new alerts:

• 4 for FIXME comment
• 1 for Returning stack-allocated memory

[todo]

Add getHandler() function to return the handler so we can cast it in the getDriverByTag

https://github.com/panix-os-dev-team/Panix/blob/788e1467554190adad33ebef5764a45c4d8ec55a/include/drivers/Driver.hpp#L45-L48

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This comment was generated by todo based on a TODO: comment in 788e146 in #79. cc @panix-os-dev-team.

[lgtm-com]

This pull request introduces 5 alerts when merging 788e146 into cf84489 - view on LGTM.com

new alerts:

• 4 for FIXME comment
• 1 for Returning stack-allocated memory