Restructure config | Move some to a packer plugin | Lot of cleanup

* move teleacope files, updater and related utils to
  https://github.com/NvChad/core

* restructure config file and directory structure

* expose mappings for better escape

* allow multiple mappings for some

* improve merge table function for the same

* move autocommands to a seperate file

* rearrange everything alphabetically where sanely possible

* rearrange packer plugin list on the basis of trigerred state

config structure now

 .
├──  init.lua
├──  LICENSE
├──  lua
│  ├──  chadrc.lua
│  ├──  colors
│  │  ├──  highlights.lua
│  │  ├──  init.lua
│  │  └──  themes
│  │     ├──  chadracula.lua
│  │     ├──  everforest.lua
│  │     ├──  gruvchad.lua
│  │     ├──  javacafe.lua
│  │     ├──  mountain.lua
│  │     ├──  norchad.lua
│  │     ├──  one-light.lua
│  │     ├──  onedark.lua
│  │     ├──  tokyonight.lua
│  │     └──  tomorrow-night.lua
│  ├──  core
│  │  ├──  autocmds.lua
│  │  ├──  init.lua
│  │  ├──  mappings.lua
│  │  ├──  options.lua
│  │  └──  utils.lua
│  ├──  default_config.lua
│  └──  plugins
│     ├──  configs
│     │  ├──  autopairs.lua
│     │  ├──  autosave.lua
│     │  ├──  bufferline.lua
│     │  ├──  chadsheet.lua
│     │  ├──  compe.lua
│     │  ├──  dashboard.lua
│     │  ├──  gitsigns.lua
│     │  ├──  icons.lua
│     │  ├──  lspconfig.lua
│     │  ├──  luasnip.lua
│     │  ├──  nvimtree.lua
│     │  ├──  others.lua
│     │  ├──  statusline.lua
│     │  ├──  telescope.lua
│     │  ├──  treesitter.lua
│     │  └──  zenmode.lua
│     ├──  init.lua
│     └──  packerInit.lua
└──  README.md

lua/options.lua

@@ -1,90 +0,0 @@
-local opt = vim.opt
-local g = vim.g
-
--- export user config as a global varibale
-g.nvchad_user_config = "chadrc"
-
-local options = require("utils").load_config().options
-
-opt.completeopt = { "menuone", "noselect" }
-opt.undofile = options.permanent_undo
-opt.ruler = options.ruler
-opt.hidden = options.hidden
-opt.ignorecase = options.ignorecase
-opt.splitbelow = true
-opt.splitright = true
-opt.termguicolors = true
-opt.cul = true
-opt.mouse = options.mouse
-opt.signcolumn = "yes"
-opt.cmdheight = options.cmdheight
-opt.updatetime = options.updatetime -- update interval for gitsigns
-opt.timeoutlen = options.timeoutlen
-opt.clipboard = options.clipboard
-
--- disable nvim intro
-opt.shortmess:append "sI"
-
--- disable tilde on end of buffer: https://github.com/  neovim/neovim/pull/8546#issuecomment-643643758
-opt.fillchars = { eob = " " }
-
--- Numbers
-opt.number = options.number
-opt.numberwidth = options.numberwidth
-opt.relativenumber = options.relativenumber
-
--- Indenline
-opt.expandtab = options.expandtab
-opt.shiftwidth = options.shiftwidth
-opt.smartindent = options.smartindent
-
--- go to previous/next line with h,l,left arrow and right arrow
--- when cursor reaches end/beginning of line
-opt.whichwrap:append "<>hl"
-
-g.mapleader = options.mapleader
-g.auto_save = options.autosave
-
--- disable builtin vim plugins
-local disabled_built_ins = {
-   "netrw",
-   "netrwPlugin",
-   "netrwSettings",
-   "netrwFileHandlers",
-   "gzip",
-   "zip",
-   "zipPlugin",
-   "tar",
-   "tarPlugin",
-   "getscript",
-   "getscriptPlugin",
-   "vimball",
-   "vimballPlugin",
-   "2html_plugin",
-   "logipat",
-   "rrhelper",
-   "spellfile_plugin",
-   "matchit",
-}
-
-for _, plugin in pairs(disabled_built_ins) do
-   g["loaded_" .. plugin] = 1
-end
-
--- uncomment this if you want to open nvim with a dir
--- vim.cmd [[ autocmd BufEnter * if &buftype != "terminal" | lcd %:p:h | endif ]]
-
--- Use relative & absolute line numbers in 'n' & 'i' modes respectively
--- vim.cmd[[ au InsertEnter * set norelativenumber ]]
--- vim.cmd[[ au InsertLeave * set relativenumber ]]
-
--- Don't show any numbers inside terminals
-vim.cmd [[ au TermOpen term://* setlocal nonumber norelativenumber | setfiletype terminal ]]
-
--- Don't show status line on certain windows
-vim.cmd [[ autocmd BufEnter,BufWinEnter,WinEnter,CmdwinEnter,TermEnter * lua require("utils").hide_statusline() ]]
-
--- Open a file from its last left off position
--- vim.cmd [[ au BufReadPost * if expand('%:p') !~# '\m/\.git/' && line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif ]]
--- File extension specific tabbing
--- vim.cmd [[ autocmd Filetype python setlocal expandtab tabstop=4 shiftwidth=4 softtabstop=4 ]]