feat(revamp): add zsh and neovim configs, add an install script and a dependencies list

config/zsh/.zprezto/modules/ocaml/README.md

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+# OCaml
+
+Initializes [OCaml][1] package management.
+
+## OPAM
+
+[OPAM][2] is a package manager for OCaml.
+
+This module enables local package installation with OPAM by extending the
+relevant path and OCaml variables.
+
+### Usage
+
+Install packages to your local package directory with `opam install`.
+
+## Authors
+
+_The authors of this module should be contacted via the [issue tracker][3]._
+
+- [Sebastian Wiesner](https://github.com/lunaryorn)
+
+[1]: https://ocaml.org/
+[2]: http://opam.ocamlpro.com/
+[3]: https://github.com/sorin-ionescu/prezto/issues

config/zsh/.zprezto/modules/ocaml/init.zsh

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+#
+# Initializes OCaml package management.
+#
+# Authors:
+#   Sebastian Wiesner <lunaryorn@gmail.com>
+#
+
+# Return if requirements are not found.
+if [[ ! -f "$HOME/.opam/opam-init/init.zsh" ]]; then
+  return 1
+fi
+
+# Initialize OPAM.
+source "$HOME/.opam/opam-init/init.zsh"