Add cpplint linter

ale_linters/cpp/cpplint.vim

@@ -0,0 +1,15 @@
+" Author: Dawid Kurek https://github.com/dawikur
+" Description: cpplint for cpp files
+
+if !exists('g:ale_cpp_cpplint_options')
+    let g:ale_cpp_cpplint_options = ''
+endif
+
+call ale#linter#Define('cpp', {
+\   'name': 'cpplint',
+\   'output_stream': 'stderr',
+\   'executable': 'cpplint',
+\   'command': 'cpplint %s',
+\   'callback': 'ale#handlers#cpplint#HandleCppLintFormat',
+\   'lint_file': 1,
+\})