Added buffer_overflow target for cheriot only (not sencha)
- Contains both CLI version and stand-alone
Bypass-Presubmit-Reason: Quick submit for CES
Change-Id: I2b10b75e1e3f5bc3e68cdc90b8b12d141cc19390
This is the project containing all the top-level build targets of all the projects within the GoB to set up the environment and build the e2e artifacts.