Add examples for planned features

examples/contexts.tk

@@ -0,0 +1,25 @@
+test = {
+  allocator = import("allocator")
+  ptr = allocator.allocate(sizeof(char[100]))
+  if (ptr == nullptr) {
+    print("Success")
+    exit(0)
+  } else {
+    print("Failure")
+  }
+}
+
+main = {
+  allocator = import("allocator")
+  logger = import("logger")
+
+  test_logger = logger.new_logger()
+  with {
+    allocator.allocate = allocator.reportOom,
+    system.out = test_logger,
+    system.error = test_logger,
+    run = test
+  }
+
+  print(test_logger)
+}

examples/enums.tk

@@ -0,0 +1,25 @@
+boolean = Enum.new(
+  true=1,
+  false=0,
+)
+
+boolean.importLiterals()
+
+color = Enum
+  .basedOn(
+    byte[3]
+  )
+  .open(
+    red=#ff0000,
+    green=#00ff00,
+    blue=#0000ff,
+  )
+
+color.addValues(
+  purple=#ff00ff,
+  cyan=#00ffff,
+)
+
+main = {
+  print("Color {red} is red")
+}