Support gljdeps.edn in go module roots, automating pkgmap and glj source embedding for glojure projects

[jfhamlin]

Problem

Developers of projects using glojure need to expose their own glojure namespaces and their own Go dependencies' packages to glojure for use in:

1. The glojure REPL
2. Their glojure code

Options

1. Require projects to build automation to generate a package map and launch a REPL from a custom Go main module
2. Generate the package map and a custom glj main package from a description of project dependencies

Decision

2. This is all boilerplate and somewhat cumbersome

Given 2, there are multiple options to describe dependencies:

1. A deps.edn file, similar to Clojure's
2. A new dependency file, either with a new format or with a subset of Clojure's deps.edn features

• 1 comes with the limitation of not being able to run clj from a project's root
• On the flip side, it will be familiar to Clojure developers

The cost of using the same filename, deps.edn, is too high. We'll start with gljdeps.edn.