Add simplified build script

Author: PeterCalifano

simplified_build.sh

@@ -0,0 +1,9 @@
+  cmake  -B build -S . -DCMAKE_BUILD_TYPE=release \
+          -DGTSAM_BUILD_UNSTABLE=0 -DGTSAM_BUILD_CONVENIENCE_LIBRARIES=OFF \
+          -DGTSAM_BUILD_PYTHON=1 -DGTSAM_INSTALL_MATLAB_TOOLBOX=0 \
+          -DGTSAM_WITH_TBB=ON \
+          -DGTSAM_WITH_EIGEN_MKL=OFF \
+          -DGTSAM_TANGENT_PREINTEGRATION=false \
+          -DGTSAM_POSE3_EXPMAP=true \
+          -DGTSAM_ROT3_EXPMAP=true 
+  #        -DCMAKE_VERBOSE_MAKEFILE=ON . |& tee CMAKE_OUTPUT_LOG.txt ..