plugins: Added a new cache modelling plugin

plugins: Added a new cache modelling plugin

Added a cache modelling plugin that uses a static configuration used in
many of the commercial microprocessors and uses random eviction policy.

The purpose of the plugin is to identify the most cache-thrashing
instructions for both instruction cache and data cache.

Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210623125458.450462-2-ma.mandourr@gmail.com>
Message-Id: <20210709143005.1554-37-alex.bennee@linaro.org>