Replaced eigen with custom matrix lib.

 Driver for the SRF02 ultrasound range finder, adapted from Maxbotix driver

Hexagon vagrant

inserted a line into the cmake config file for px4fmu-v2

Virtualbox has issues with certain operations on shared folders
using the default sharing mechanism. These are overcome using
NFS sharing.

On Ubuntu, sudo apt-get install nfs-kernel-server

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The environment variable HEXAGON_TOOLS_ROOT must be set to the location
of the installed HexagonTools. This could be a global install at
/opt/HEXAGON_Tools/7.2.10/Tools or it could be a personal install
${HOME}/Qualcomm/HEXAGON_Tools/7.2.10/Tools.

The default install path used by the installer is exported in the Vagrantfile.

There is still an issue that the hexagon linker fails on mmap of the shared folder.
If the shared folder was mounted via NFS for Linux and MacOS the problem would be
resolved.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Vagrant did not like the simlinks in the dspal repo.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

This reverts commit 7fd6d2dc.

Enable build of posix_eagle_release.
Added path to ARM cross compiler in qrlsdk install.
Fixed warnings in Toolchain-arm-linux-gnueabihf.cmake

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

qurt: Change to Hexagon 7.2.10 compiler

Signed-off-by: Mark Charlebois <charlebm@gmail.com>