ICSHWI-6479 e3 standardization

Note that this MR is a Draft and shouldn't be approved nor merged yet.

This MR does a number of things:

• modifies directory names to remove the deprecated -loc suffix
• removes the <module>App subdir
• defines that the module only needs to be built for corei7-poky and x86_64
• updates configuration files to align the module with our current approach (e.g., installs to siteMods)
• versions the module (1.0.0)
• removes template and unneeded code
• updates default config values to use the current environment definition (base 7.0.4, require 3.3.0, etc.)
• defines module dependencies appropriately
• restructures README, primarily to display requirements and setup at first glance
• adds a LICENSE (GPLv3)