add editorconfig

Signed-off-by: Maciej Barć <xgqt@protonmail.com>

.editorconfig

@@ -0,0 +1,40 @@
+# This file is part of src_prepare-overlay.
+
+# src_prepare-overlay is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# src_prepare-overlay is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with src_prepare-overlay.  If not, see <https://www.gnu.org/licenses/>.
+
+# Original author: Maciej Barć (xgqt@protonmail.com)
+# Copyright (c) 2020, src_prepare group
+# Licensed under the GNU GPL v2 License
+
+
+root = true
+
+[*]
+end_of_line = lf
+indent_style = space
+insert_final_newline = true
+tab_width = 4
+
+[.gitmodules]
+indent_style = tab
+
+[*.ebuild]
+indent_style = tab
+
+[metadata.xml]
+indent_style = tab
+
+[repositories.xml]
+indent_style = space
+tab_width = 2