cmake OsqpEigen examples

LiJiangnanBit/path_optimizer_2 CMakeLists.txt :20 

find_package(OsqpEigen REQUIRED)

stack-of-tasks/tsid CMakeLists.txt :218 

find_package(OsqpEigen REQUIRED)

mlab-upenn/LearningMPC CMakeLists.txt :20 

find_package(OsqpEigen REQUIRED)