Merge function-builder branch into master

src/commonMain/kotlin/nl/astraeus/css/properties/Grid.kt

@@ -0,0 +1,72 @@
+package nl.astraeus.css.properties
+
+
+class Grid(
+    value: String
+) : CssProperty(value) {
+
+    companion object {
+        val none = Grid("none")
+        val initial = Grid("initial")
+        val inherit = Grid("inherit")
+    }
+
+}
+
+class GridAuto(
+    value: String
+) : CssProperty(value) {
+
+    companion object {
+        val auto = GridAuto("auto")
+        val maxContent = GridAuto("max-content")
+        val minContent = GridAuto("min-content")
+    }
+
+}
+
+class GridFlow(
+    value: String
+) : CssProperty(value) {
+
+    companion object {
+        val row = GridFlow("row")
+        val column = GridFlow("column")
+        val dense = GridFlow("dense")
+        val rowDense = GridFlow("row dense")
+        val columnDense = GridFlow("column dense")
+    }
+
+}
+
+class GridValue(
+    value: String
+) : CssProperty(value) {
+
+    companion object {
+        val auto = GridValue("auto")
+
+        fun span(column: Int) = GridValue("span $column")
+        fun column(line: Int) = GridValue("$line")
+        fun row(line: Int) = GridValue("$line")
+    }
+
+}
+
+class TemplateRowColumn(
+    value: String
+) : CssProperty(value) {
+
+    companion object {
+        val none = GridValue("none")
+        val auto = GridValue("auto")
+        val maxContent = GridValue("max-content")
+        val minContent = GridValue("min-content")
+        val initial = GridValue("initial")
+        val inherit = GridValue("inherit")
+
+        fun length(length: Measurement) = GridValue(length.value)
+    }
+
+}
+