initial commit, add nvterm files to custom plugins

lua/custom/plugins/nvterm_config.lua

@@ -0,0 +1,21 @@
+require("nvterm").setup()
+
+local terminal = require("nvterm.terminal")
+
+local ft_cmds = {
+  python = "python3 " .. vim.fn.expand('%'),
+  ...
+  --<your commands here>
+}
+local toggle_modes = { 'n', 't' }
+local mappings = {
+  { 'n',          '<C-l>', function() terminal.send(ft_cmds[vim.bo.filetype]) end },
+  { toggle_modes, '<A-h>', function() terminal.toggle('horizontal') end },
+  { toggle_modes, '<A-v>', function() terminal.toggle('vertical') end },
+  { toggle_modes, '<A-i>', function() terminal.toggle('float') end },
+}
+local opts = { noremap = true, silent = true }
+for _, mapping in ipairs(mappings) do
+  vim.keymap.set(mapping[1], mapping[2], mapping[3], opts)
+end
+