Initial data commit

Task/Literals-String/D/literals-string-1.d

@@ -0,0 +1 @@
+char c = 'a';

Task/Literals-String/D/literals-string-2.d

@@ -0,0 +1,4 @@
+auto str = "hello";   // UTF-8
+auto str2 = "hello"c;  // UTF-8
+auto str3 = "hello"w; // UTF-16
+auto str4 = "hello"d; // UTF-32

Task/Literals-String/D/literals-string-3.d

@@ -0,0 +1,2 @@
+auto str = `"Hello," he said.`;
+auto str2 = r"\n is slash-n";

Task/Literals-String/D/literals-string-4.d

@@ -0,0 +1,4 @@
+// Any character is allowed after the first quote;
+// the string ends with that same character followed
+// by a quote.
+auto str = q"$"Hello?" he enquired.$";

Task/Literals-String/D/literals-string-5.d

@@ -0,0 +1,5 @@
+// If you include a newline, you get a heredoc string:
+auto otherStr = q"EOS
+This is part of the string.
+    So is this.
+EOS";

Task/Literals-String/D/literals-string-6.d

@@ -0,0 +1,4 @@
+// The contents of a token string must be valid code fragments.
+auto str = q{int i = 5;};
+// The contents here isn't a legal token in D, so it's an error:
+auto illegal = q{@?};

Task/Literals-String/D/literals-string-7.d

@@ -0,0 +1,2 @@
+// assigns value 'hello' to str
+auto str = x"68 65 6c 6c 6f";