Include legacy documentation in pdf and MS Word format - General & ElastoDyn#805

Merged

rafmudaf merged 9 commits intoOpenFAST:devfrom rafmudaf:docs/legacy_docs

Sep 20, 2021

+123-55

Commits on Aug 31, 2021

Note that legacy docs may be out of date
rafmudaf
committed

Commits on Sep 14, 2021

Merge branch 'dev' into docs/legacy_docs
rafmudaf
committed

Commits on Sep 15, 2021

Add unofficial FAST theory manual
rafmudaf
committed

Commits on Sep 20, 2021