Add python support

At the moment, only supports params for function definitions.
I added more options to configure the default generator (please see the
templates field in configuration/python.lua)

lua/neogen/configurations/python.lua

@@ -0,0 +1,39 @@
+local ts_utils = require("nvim-treesitter.ts_utils")
+
+return {
+    -- Search for these nodes
+    parent = { "function_definition" },
+
+    -- Traverse down these nodes and extract the information as necessary
+    data = {
+        ["function_definition"] = {
+            ["2"] = {
+                match = "parameters",
+
+                extract = function(node)
+                    local regular_params = neogen.utility:extract_children("identifier")(node)
+
+                    return {
+                        parameters = regular_params,
+                    }
+                end,
+            },
+        },
+    },
+
+    -- Use default granulator and generator
+    locator = nil,
+    granulator = nil,
+    generator = nil,
+
+    template = {
+        annotation_convention = "google_docstrings", -- required: Which annotation convention to use (default_generator)
+        append = { position = "after", offset = 4 }, -- optional: where to append the text (default_generator)
+        use_default_comment = false, -- If you want to prefix the template with the default comment for the language (default_generator)
+        google_docstrings = {
+            { nil, '"""' },
+            { "parameters", "\t%s: ", { before_first_item = "Args: " } },
+            { nil, '"""' },
+        },
+    },
+}