Add a global convenience package file

Author: wilzbach

std/package.d

@@ -0,0 +1,52 @@
+public import std.algorithm;
+public import std.array;
+public import std.ascii;
+public import std.base64;
+public import std.bigint;
+public import std.bitmanip;
+public import std.compiler;
+public import std.complex;
+public import std.concurrency;
+public import std.container;
+public import std.conv;
+public import std.csv;
+public import std.datetime;
+public import std.demangle;
+public import std.digest;
+public import std.encoding;
+public import std.exception;
+public import std.file;
+public import std.format;
+public import std.functional;
+public import std.getopt;
+public import std.json;
+public import std.math;
+public import std.mathspecial;
+public import std.meta;
+public import std.mmfile;
+public import std.net.curl;
+public import std.numeric;
+public import std.outbuffer;
+public import std.parallelism;
+public import std.path;
+public import std.process;
+public import std.random;
+public import std.range;
+public import std.regex;
+public import std.signals;
+public import std.socket;
+public import std.stdint;
+public import std.stdio;
+public import std.string;
+public import std.system;
+public import std.traits;
+public import std.typecons;
+public import std.typetuple;
+public import std.uni;
+public import std.uri;
+public import std.utf;
+public import std.uuid;
+public import std.variant;
+public import std.xml;
+public import std.zip;
+public import std.zlib;