Add replacement intentions for operator functions

Add intentions for replacing attribute calls that correspond to
overloadable operators with their respective operators.

This commit includes call replacements for:
 * Binary Infix Operators: plus, minus, times, rangeTo, mod, div
 * Unary Prefix Operators: plus, minus, not
 * Array Index Operator: get
 * In Operator: contains

idea/testData/intentions/attributeCallReplacements/replaceBinaryInfixIntention/extensionFunction.kt

@@ -0,0 +1,6 @@
+fun test() {
+    class Test()
+    fun Test.div(a: Int): Test = Test()
+    val test = Test()
+    test.div<caret>(1)
+}