Add timer example

.editorconfig

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+[*.d]
+dfmt_align_switch_statements = true
+# allman, otbs, or stroustrup
+dfmt_brace_style = otbs
+#dfmt_brace_style = stroustrup
+dfmt_outdent_attributes = true
+dfmt_outdent_labels = true
+dfmt_soft_max_line_length = 80
+dfmt_space_after_cast = false
+dfmt_space_after_keywords = true
+dfmt_split_operator_at_line_end = false
+
+trim_trailing_whitespace = true
+end_of_line = lf
+indent_size = 3
+indent_style = space
+insert_final_newline = true
+max_line_length = 120
+tab_width = 8

examples/timerc/dub.sdl

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+name "timer"
+description "Simple timer example"
+authors "Orfeo Da Viá"
+copyright "Copyright © 2017, o3o"
+license "LGPL v3.0.0"
+dependency "dinodave" path="../../"
+
+targetType "executable"
+targetPath "bin"
+libs "nodave" platform="posix"
+sourceFiles "../../lib/libnodave.lib" platform="windows-x86_32-dmd"
+copyFiles "../../lib/libnodave.dll" platform="windows-x86_32-dmd"

examples/timerc/src/app.d

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+import std.stdio;
+import std.conv;
+
+import dinodave;
+
+void main(string[] args) {
+   enum string IP = "192.168.0.150";
+   string ip = IP;
+   if (args.length > 1) {
+      ip = args[1];
+   }
+
+   writeln("Use ip ", ip);
+   writeln("\nTrying to read 4 items from Timers (supposed to work S7-3xx/4xx)\n");
+   auto dc = createConnection(ip);
+   // read 4 timers: each timer has 2 bytes
+   const(int) res = daveReadBytes(dc, daveTimer, 0, 0, 4, null);
+
+   writefln("function result:%d=%s\n", res, daveStrerror(res));
+
+   if (res == 0) {
+      writeln("\nShowing the results using daveGetSeconds(dc)\n");
+      writefln("Time: %0.3f, ", daveGetSeconds(dc));
+      writefln("%0.3f, ", daveGetSeconds(dc));
+      writefln("%0.3f, ", daveGetSeconds(dc));
+      writefln(" %0.3f\n", daveGetSeconds(dc));
+
+      writeln("\nShowing the same results using daveGetSecondsAt(dc,position)\n");
+      writefln("Time: %0.3f, ", daveGetSecondsAt(dc, 0));
+      writefln("%0.3f, ", daveGetSecondsAt(dc, 2));
+      writefln("%0.3f, ", daveGetSecondsAt(dc, 4));
+      writefln(" %0.3f\n", daveGetSecondsAt(dc, 6));
+   }
+}