Initial VST3 Support (disabled)

Disabled until Steinberg licensing compliance  can be sorted out.

src/LiteralVersion.cpp

@@ -0,0 +1,74 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2022 Robin E. R. Davies
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+#include "LiteralVersion.hpp"
+#include <sstream>
+#include <cctype>
+
+using namespace pipedal;
+
+LiteralVersion::LiteralVersion()
+{
+}
+LiteralVersion::LiteralVersion(const std::string &version)
+{
+    Parse(version);
+}
+
+bool LiteralVersion::Parse(const std::string &version)
+{
+    int ix = 0;
+
+    while (ix < version.length())
+    {
+        char c = version[ix];
+        int n = 0;
+        if (std::isdigit(c))
+        {
+            while (std::isdigit(c))
+            {
+                c = version[ix++];
+                n = c -'0' + n;
+            }
+            this->versionNumbers.push_back(n);
+
+            if (version[ix] == '.')
+            {
+                ++ix;
+            }
+        } else {
+            std::stringstream t;
+
+            while (ix < version.length())
+            {
+                c = version[ix++];
+                t << c;
+            }
+            suffix = t.str();            
+        }
+    }
+
+    return true;
+}