Add support for clojure-lsp

[hoclun-rigsep]

Name: clojure-lsp URL: https://clojure-lsp.io

Clojure-lsp seems to be the consensus LSP implementation for Clojure and I'd like it for the refactoring etc commands that ALE provides but that, to my understanding, require an LSP not just a linter like clj-kondo. Thanks for reading!

[hoclun-rigsep]

If I could just figure out how to set project_root I would pr this myself.

[hoclun-rigsep]

function! GetCljProjectRoot(buffer) abort                                
    let l:project_root = ale#path#FindNearestFile(a:buffer, 'deps.edn')  

    if !empty(l:project_root)                                            
        return fnamemodify(l:project_root, ':h')                         
    endif                                                                

    return ''                                                            
endfunction                                                              

call ale#linter#Define('clojure', {                                      
\   'name': 'clojure-lsp',                                               
\   'lsp': 'stdio',                                                      
\   'executable': '/usr/local/bin/clojure-lsp',                          
\   'command': '/usr/local/bin/clojure-lsp',                             
\   'project_root': function('GetCljProjectRoot'),                       
\})