Enhances the R Optimization Infrastructure ('ROI') package
        	 with the 'DEoptim' and 'DEoptimR' package. 'DEoptim' is
        	 used for unconstrained optimization and 'DEoptimR' for
        	 constrained optimization.

Enhances the 'R' Optimization Infrastructure ('ROI') package
	     with the Embedded Conic Solver ('ECOS') for solving conic optimization problems.

Enhances the 'R' Optimization Infrastructure ('ROI') package by registering
	     the free 'GLPK' solver. It allows for solving mixed integer linear programming ('MILP')
	     problems as well as all variants/combinations of 'LP', 'IP'.

Enhances the 'R' Optimization Infrastructure ('ROI') package
         with the quadratic solver 'HiGHS'. More information about
         'HiGHS' can be found at <https://highs.dev>.

Enhances the 'R' Optimization Infrastructure ('ROI') package 
    by registering the 'ipop' solver from package 'kernlab'.

Enhances the 'R' Optimization Infrastructure ('ROI') package
             with the 'lp_solve' solver.

Enhances the 'R' Optimization Infrastructure ('ROI') package
             with the possibility to obtain multiple solutions for linear 
             problems with binary variables. The main function is copied 
             (with small modifications) from the relations package.

Enhances the 'R' Optimization Infrastructure ('ROI') package
             with a connection to the 'neos' server. 'ROI' optimization
             problems can be directly be sent to the 'neos' server
             and solution obtained in the typical 'ROI' style.

Enhances the R Optimization Infrastructure ('ROI') package
        with the 'NLopt' solver for solving nonlinear optimization problems.

Enhances the R Optimization Infrastructure ('ROI') package
        with the 'optimx' package.

Enhances the 'R' Optimization Infrastructure ('ROI') package
         with the quadratic solver 'OSQP'. More information about
         'OSQP' can be found at <https://osqp.org>.

Enhances the 'R' Optimization Infrastructure ('ROI') package
         with the quadratic solver 'qpOASES'. More information about
         'qpOASES' can be found at <https://github.com/coin-or/qpOASES>.