added autocreation-dub

.gitignore

@@ -1,3 +1,4 @@
 .dub/
 bin/
 .vscode/
+autocreation-dub.sh

src/example_3/.gitignore

@@ -1,15 +0,0 @@
-.dub
-docs.json
-__dummy.html
-docs/
-/example_3
-example_3.so
-example_3.dylib
-example_3.dll
-example_3.a
-example_3.lib
-example_3-test-*
-*.exe
-*.o
-*.obj
-*.lst

src/example_3/dub.json

@@ -1,10 +0,0 @@
-{
-	"authors": [
-		"alexander"
-	],
-	"copyright": "Copyright © 2021, alexander",
-	"description": "Основы работы с функциями",
-	"license": "proprietary",
-	"name": "example_3",
-    "targetPath": "bin"
-}

src/example_3/source/app.d

@@ -1,10 +0,0 @@
-import std.stdio;
-import fun_;
-
-void main()
-{
-    uint a = 1;
-    double b = 2;
-    fun(a, b);
-    writeln(a, ' ', b);
-}

src/example_3/source/fun.d

@@ -1,7 +0,0 @@
-module fun_;
-
-void fun(ref uint x, double y)
-{
-    x = 42;
-    y = 3.14;
-}