Repo restyled using astyle (#683)

The rules are in .tools/astyle/config/style.cfg
and can also be reviewed at
https://www.mysensors.org/view/260#coding-guidelines-core-library

.tools/astyle/config/style.cfg

@@ -0,0 +1,23 @@
+# Coding standard for MySensors core library (see https://www.mysensors.org/download/contributing)
+
+# Curly braces should follow "One True Brace Style" format
+style=1tbs
+
+# All control statements ('if', 'for', 'while' etc.) should include curly braces {}. Even one-liners.
+add-brackets
+
+# Tab-character for white space/indentation
+indent=tab
+
+# All lines should be kept at 100 character width or less
+max-code-length=100
+break-after-logical
+
+# Preprocessor blocks should be indented
+#indent-preproc-block
+
+# Preprocessor definitions should be indented if linebroken
+indent-preproc-define
+
+# C++ comments should be indented to source level, and not be kept in first column
+indent-col1-comments