removed library folders
Squashed 'references/bi/' content from commit 2dbcdf0

git-subtree-dir: references/bi
git-subtree-split: 2dbcdf01cca138b9cb36f49db2f41267b4fba5f3
Merge commit '190055e1172c3c5557eedb3018f17ba54a60dbd3' as 'references/bi'
Squashed 'references/core/' content from commit 186ce0d

git-subtree-dir: references/core
git-subtree-split: 186ce0d5d7f05e917d22de6edb8806aa6c1a03b7
Merge commit '9c0526bfafa546d790778a5d78040c5f8c76813d' as 'references/core'
Squashed 'references/dal/' content from commit 1219662

git-subtree-dir: references/dal
git-subtree-split: 1219662a434557d903d640b3b26f7f47562f992d
Merge commit '1a7f977cf0d19e737a69f8292eba3dfa1d3ea2c2' as 'references/dal'
Squashed 'references/platform/' content from commit 2a02682

git-subtree-dir: references/platform
git-subtree-split: 2a02682dfd907ce4603ae7be699d1957465a781f
Merge commit 'cd7b54b70869956f798b5a53e2424f77084b4e46' as 'references/platform'
re-added library folders