.editorconfig and .gitattributes to centralize formatting

.editorconfig

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+# EditorConfig: http://editorconfig.org/
+
+root = true
+
+[*]
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+
+[*.gradle]
+indent_size = 2
+
+[*.groovy]
+indent_size = 4
+
+[*.java]
+indent_size = 4
+
+[*.json]
+indent_size = 2
+
+[*.sh]
+indent_size = 2
+
+[*.{yml,yaml}]
+indent_size = 2
+
+[*.{xsd,xml}]
+indent_size = 4

.gitattributes

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+# Java sources
+*.java          text diff=java
+*.kt            text diff=kotlin
+*.groovy        text diff=java
+*.scala         text diff=java
+*.gradle        text diff=java
+*.gradle.kts    text diff=kotlin
+
+# These files are text and should be normalized (Convert crlf => lf)
+*.css           text diff=css
+*.scss          text diff=css
+*.sass          text
+*.df            text
+*.htm           text diff=html
+*.html          text diff=html
+*.js            text
+*.jsp           text
+*.jspf          text
+*.jspx          text
+*.properties    text
+*.tld           text
+*.tag           text
+*.tagx          text
+*.xml           text
+
+# These files are binary and should be left untouched
+# (binary is a macro for -text -diff)
+*.class         binary
+*.dll           binary
+*.ear           binary
+*.jar           binary
+*.so            binary
+*.war           binary
+*.jks           binary
+
+# Common build-tool wrapper scripts ('.cmd' versions are handled by 'Common.gitattributes')
+mvnw            text eol=lf
+gradlew         text eol=lf