Add "Blank lines before }" option

#KT-15504 Fixed

idea/testData/formatter/BlankLinesBeforeRBrace.after.kt

@@ -0,0 +1,17 @@
+fun foo() {
+    println("a")
+
+
+    if (1 > 2) {
+
+        println("foo")
+    }
+}
+
+
+class X {
+    fun foo() = 1
+}
+
+
+// SET_INT: KEEP_BLANK_LINES_BEFORE_RBRACE = 0

idea/testData/formatter/BlankLinesBeforeRBrace.kt

@@ -0,0 +1,25 @@
+fun foo() {
+    println("a")
+
+
+    if (1 > 2) {
+
+        println("foo")
+
+
+    }
+
+}
+
+
+class X {
+    fun foo() = 1
+
+
+
+}
+
+
+
+
+// SET_INT: KEEP_BLANK_LINES_BEFORE_RBRACE = 0

idea/testData/formatter/BlankLinesBeforeRBrace2.after.kt

@@ -0,0 +1,20 @@
+fun foo() {
+    println("a")
+
+
+    if (1 > 2) {
+
+        println("foo")
+
+
+    }
+
+
+}
+
+
+class X {
+    fun foo() = 1
+
+
+}

idea/testData/formatter/BlankLinesBeforeRBrace2.kt

@@ -0,0 +1,23 @@
+fun foo() {
+    println("a")
+
+
+    if (1 > 2) {
+
+        println("foo")
+
+
+
+    }
+
+
+
+}
+
+
+class X {
+    fun foo() = 1
+
+
+
+}