True lazy loading, lsp installs, and nvim-compe

Installation scripts for:
+ bashls
+ ccls
+ clangd
+ pylsp
+ pyright
+ sumneko
+ zls

And adjusted a few keymaps

scripts/install_bashls_server.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+source scripts/query_dependencies.sh
+query_dep 'npm'
+
+if response == 'y' then
+    npm -i -g bash-language-server
+fi

scripts/install_ccls_server.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+source scripts/query_dependencies.sh
+query_dep 'CMake'
+query_dep 'C++17'
+query_dep '
+
+if response == 'y' then
+    cd builds
+    git clone --depth=1 --recursive https://github.com/MaskRay/ccls
+    cd ccls
+    cmake -H. -BRelease -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH=/path/to/clang+llvm-xxx
+    cmake --build Release
+fi

scripts/install_clangd_server.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+printf 'Install from clang-tools or similar '
+printf 'with your OS or from releases on LLVM site\n'

scripts/install_pylsp_server.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+source scripts/query_dependencies.sh
+query_dep 'pip'
+
+if response == 'y' then
+    pip install python-lsp-server
+fi

scripts/install_pyright_server.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+source scripts/query_dependencies.sh
+query_dep 'npm'
+
+if response == 'y' then
+    npm -i -g pyright
+fi

scripts/install_sumneko_lua.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+source scripts/query_dependencies.sh
+query_dep 'ninja'
+query_dep 'C++17'
+
+if $response == 'y' then
+    mkdir -p builds
+    cd builds
+    git clone https://github.com/sumneko/lua-language-server
+    cd lua-language-server
+    git submodule update --init --recursive
+    cd 3rd/luamake
+    compile/install.sh
+    cd ../..
+    ./3rd/luamake/luamake rebuild
+fi

scripts/install_zls_server.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+source scripts/query_dependencies.sh
+query_dep "xz or xz-utils"
+
+if response == 'y' then
+    mkdir -p builds/zls && cd builds/zls && curl -L https://github.com/zigtools/zls/releases/download/0.1.0/x86_64-linux.tar.xz | tar -xJ --strip-components=1 -C .
+fi

scripts/query_dependency.sh

@@ -0,0 +1,7 @@
+function query_dep(){
+    printf 'Did you install '
+    printf $1
+    printf '?\n (y/N)'
+    response='n'
+    read response
+}