MAJOR: Project rename and preparation for v1.0.0

I hope I haven't missed any for the renames!

lua/outline/providers/coc.lua

@@ -0,0 +1,96 @@
+local M = {}
+
+function M.should_use_provider(_)
+  local not_coc_installed = vim.fn.exists '*CocActionAsync' == 0
+  local not_coc_service_initialized = vim.g.coc_service_initialized == 0
+
+  if not_coc_installed or not_coc_service_initialized then
+    return
+  end
+
+  local coc_attached = vim.fn.call('CocAction', { 'ensureDocument' })
+  local has_symbols = vim.fn.call('CocHasProvider', { 'documentSymbol' })
+
+  return coc_attached and has_symbols
+end
+
+function M.hover_info(_, _, on_info)
+  on_info(nil, {
+    contents = {
+      kind = 'markdown',
+      contents = { 'No extra information availaible!' },
+    },
+  })
+end
+
+---@param result table
+local function convert_symbols(result)
+    local s = {}
+    local kinds_index = {}
+    -- create a inverse indexing of symbols.kind
+    local symbols = require("outline.symbols")
+    for k, v in pairs(symbols.kinds) do
+        kinds_index[v] = k
+    end
+    -- rebuild coc.nvim symbol list hierarchy according to the 'level' key
+    for _, value in pairs(result) do
+        value.children = {}
+        value.kind = kinds_index[value.kind]
+        if #s == 0 then
+            table.insert(s, value)
+            goto continue
+        end
+        if value.level == s[#s].level then
+            if value.level == 0 then
+                table.insert(s, value)
+                goto continue
+            end
+            local tmp = s[#s]
+            table.remove(s)
+            table.insert(s[#s].children, tmp)
+            table.insert(s, value)
+        elseif value.level == s[#s].level + 1 then
+            table.insert(s[#s].children, value)
+        elseif value.level == s[#s].level + 2 then
+            local tmp = s[#s].children[#(s[#s].children)]
+            table.remove(s[#s].children)
+            table.insert(s, tmp)
+            table.insert(s[#s].children, value)
+        elseif value.level < s[#s].level then
+            while value.level < s[#s].level do
+                local tmp = s[#s]
+                table.remove(s)
+                table.insert(s[#s].children, tmp)
+            end
+            if s[#s].level ~= 0 then
+                local tmp = s[#s]
+                table.remove(s)
+                table.insert(s[#s].children, tmp)
+                table.insert(s, value)
+            else
+                table.insert(s, value)
+            end
+        end
+        ::continue::
+    end
+    local top = s[#s]
+    while top.level ~= 0 do
+        table.remove(s)
+        table.insert(s[#s].children, top)
+        top = s[#s]
+    end
+    return s
+end
+
+---@param on_symbols function
+---@param opts table
+function M.request_symbols(on_symbols, opts)
+  vim.fn.call('CocActionAsync', {
+    'documentSymbols',
+    function(_, symbols)
+      on_symbols({ [1000000] = { result = convert_symbols(symbols) } }, opts)
+    end,
+  })
+end
+
+return M