gnu: Add texlive-theatre.

* gnu/packages/tex.scm (texlive-theatre): New variable.

gnu: Add texlive-thalie.

* gnu/packages/tex.scm (texlive-thalie): New variable.

gnu: Add texlive-textglos.

* gnu/packages/tex.scm (texlive-textglos): New variable.

gnu: Add texlive-stage.

* gnu/packages/tex.scm (texlive-stage): New variable.

gnu: Add texlive-sides.

* gnu/packages/tex.scm (texlive-sides): New variable.

gnu: Add texlive-screenplay-pkg.

* gnu/packages/tex.scm (texlive-screenplay-pkg): New variable.

gnu: Add texlive-screenplay.

* gnu/packages/tex.scm (texlive-screenplay): New variable.

gnu: Add texlive-rtklage.

* gnu/packages/tex.scm (texlive-rtklage): New variable.

gnu: Add texlive-rrgtrees.

* gnu/packages/tex.scm (texlive-rrgtrees): New variable.

gnu: Add texlive-reledmac.

* gnu/packages/tex.scm (texlive-reledmac): New variable.

gnu: Add texlive-qtree.

* gnu/packages/tex.scm (texlive-qtree): New variable.

gnu: Add texlive-qobitree.

* gnu/packages/tex.scm (texlive-qobitree): New variable.

gnu: Add texlive-poetrytex.

* gnu/packages/tex.scm (texlive-poetrytex): New variable.

gnu: Add texlive-poetry.

* gnu/packages/tex.scm (texlive-poetry): New variable.

gnu: Add texlive-poemscol.

* gnu/packages/tex.scm (texlive-poemscol): New variable.

gnu: Add texlive-play.

* gnu/packages/tex.scm (texlive-play): New variable.

gnu: Add texlive-plari.

* gnu/packages/tex.scm (texlive-plari): New variable.

gnu: Add texlive-phonrule.

* gnu/packages/tex.scm (texlive-phonrule): New variable.

gnu: Add texlive-parrun.

* gnu/packages/tex.scm (texlive-parrun): New variable.

gnu: Add texlive-parallel.

* gnu/packages/tex.scm (texlive-parallel): New variable.