Setup spacing rules for secondary constructors

#KT-6968 Fixed

idea/testData/formatter/SecondaryConstructors.kt

@@ -0,0 +1,31 @@
+class A {
+    constructor() {}
+    constructor() {}
+    fun foo() {}
+    constructor() {}
+    fun foo() {}
+    constructor() {}
+    val x = 1
+    constructor() {}
+    fun foo() {}
+    val x = 1
+    constructor() {}
+    val x = 1
+    val x = 1
+constructor() {}
+    constructor() {
+
+        x = 1
+    }
+    fun foo() = 1
+    constructor() {}
+    fun foo() = 1
+
+
+
+    constructor()   : this() {}
+constructor():this() {}
+
+    constructor(): this   () {}
+    constructor(): super(){}
+}