Renaming eglot -- or at least add an alias?

[Stefan Kangas]

Hi all, João,

Now that we're getting closer to merging eglot, I think it is our last
chance to (re-)consider that "eglot" is not the ideal name.  It has some
charm, of course, but it is quite non-descriptive and it's hard (read:
impossible) to understand what it does based on the name alone.[1]

As for names, lsp-mode would be the obvious choice, but some other
package has occupied that prefix (too bad).  I therefore propose
renaming it to elsp-mode and using the elsp-* prefix for it.

At the very least, we should consider adding some alias, like
`start-lsp', and/or `lsp-start'.[2]

Footnotes:
[1]  https://lists.gnu.org/r/emacs-devel/2020-05/msg02828.html

[2]  https://lists.gnu.org/r/emacs-devel/2020-05/msg02818.html