[meta,cmake] Restructure project and introduce CMake tooling

Rearrange project to conform to current best-practices in modern C++ repo organization.

Introduce initial configuration file for the CMake meta-build system, based on the restructured organization.

scripts/runFileTest.sh

 #!/bin/bash
 echo "building scdaq locally"
-cd src
+cd build
+cmake ..
 make all
 cd -
 echo "building scdaq locally"
@@ -9,11 +10,11 @@ tar -xzvf calo_testfile.tar.gz
 tar -xzvf gmt_testfile.tar.gz
 cd ../../
 echo "Starting scdaq test with GMT P5 capture file: check for crash"
-timeout 20s src/scdaq --config test/config/scdaq-gmt.conf | uniq
+timeout 20s build/scdaq --config test/config/scdaq-gmt.conf | uniq
 GMTRET="${PIPESTATUS[0]}"
 echo "#############################################################################"
 echo "Starting scdaq test with CALO P5 capture file: check for crash"
-timeout 60s src/scdaq --config test/config/scdaq-calo.conf | uniq
+timeout 60s build/scdaq --config test/config/scdaq-calo.conf | uniq
 CALORET="${PIPESTATUS[0]}"
 if [[ "$GMTRET" -ne 124 ]]; then # We expect to fail with a timeout because scdaq isn't supposed to return.
     echo "SCDAQ test for GMT failed with exit code ${GMTRET}!"