at higher level, config split into builtin config and plugins config

• basemap.lua, contains builtin keymaps
• set.lua, contain flags and commands
• util.lua, more advance functionality

this config does not use any plugin manager

every plugin is manually git cloned and pulled

updating plugins:

for i in `ls -1`; do (cd $i;git pull &); done

contain non-lsp plugins:

• navarasu/onedark, color theme
• nvim-treesitter/nvim-treesitter, treesitter
• tpope/vim-fugitive, git stuff
• nvim-telescope/telescope, fuzzyfinder
• theprimeagen/harpoon, pin file to a keybind
• numToStr/Comment.nvim, commenting
• folke/todo-comments.nvim, highlight todo marker
• nvim-neo-tree/neo-tree.nvim, file browser

contain lsp related plugins:

lsp can be turned off altogether with LSP=0 env variable

especially rust lsp with RUST_LSP=0 env variable

contains vscode style snippets via luasnip.loaders.from_vscode plugin