Move roofline plot generation to analyze mode

[sohaibnd]

This is to address #435

Still, the only thing I need would be a way to generate the roofline PDFs for a given kernel after having recorded performance counters for all kernel.

I believe that would be a useful feature because we don't want to re-profile the whole program each time we want a roofline for a different kernel. This feature seems to already exist in the GUI, I would appreciate having the same capabilities built in the CLI

By moving the creation of the roofline plot pdfs to analyze mode on cli, we can create a roofline plots with different kernel filtering without having to re-profile the whole program.

[coleramos425]

@sohaibnd make sure you're also updating any CI tests that leverage the flags that are modified in this PR, i.e.,

rocprofiler-compute/tests/test_profile_general.py

Line 1575 in c90b6a4

def test_sort_kernels():

If this introduces a new "roofline" mode, we may want to add logic for this in tests to ensure it isn't being missed