math/R-cran-GPArotation: new port

GPA Rotation for Factor Analysis

The GPArotation package contains functions for the rotation of factor loadings
matrices. The functions implement Gradient Projection (GP) algorithms for
orthogonal and oblique rotation. Additionally, a number of rotation criteria
are provided. The GP algorithms minimize the rotation criterion function, and
provide the corresponding rotation matrix. For oblique rotation, the
covariance/correlation matrix of the factors is also provided.

The port is required by update of math/R-cran-psych.