logic: ship clang compiler header within Sourcetrail package on Windows

* added clang system headers to data folder of Sourcetrail repo
* added clang system header search directory to detected directories on windows
* updated migration to add clang system header search directory on windows
* updated windows installer and portable package to include compiler headers
* updated linux package
* cleaned code of path detectors
* unrelated removal of unnecessary code in LicenseChecker and UpdateChecker

bin/app/data/cxx/include/fxsrintrin.h

@@ -0,0 +1,105 @@
+/*===---- fxsrintrin.h - FXSR intrinsic ------------------------------------===
+ *
+ * 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.
+ *
+ *===-----------------------------------------------------------------------===
+ */
+
+#ifndef __IMMINTRIN_H
+#error "Never use <fxsrintrin.h> directly; include <immintrin.h> instead."
+#endif
+
+#ifndef __FXSRINTRIN_H
+#define __FXSRINTRIN_H
+
+#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__,  __target__("fxsr")))
+
+/// \brief Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
+///    memory region pointed to by the input parameter \a __p.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the <c> FXSAVE </c> instruction.
+///
+/// \param __p
+///    A pointer to a 512-byte memory region. The beginning of this memory
+///    region should be aligned on a 16-byte boundary.
+static __inline__ void __DEFAULT_FN_ATTRS
+_fxsave(void *__p)
+{
+  return __builtin_ia32_fxsave(__p);
+}
+
+/// \brief Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
+///    memory region pointed to by the input parameter \a __p. The contents of
+///    this memory region should have been written to by a previous \c _fxsave
+///    or \c _fxsave64 intrinsic.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the <c> FXRSTOR </c> instruction.
+///
+/// \param __p
+///    A pointer to a 512-byte memory region. The beginning of this memory
+///    region should be aligned on a 16-byte boundary.
+static __inline__ void __DEFAULT_FN_ATTRS
+_fxrstor(void *__p)
+{
+  return __builtin_ia32_fxrstor(__p);
+}
+
+#ifdef __x86_64__
+/// \brief Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
+///    memory region pointed to by the input parameter \a __p.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the <c> FXSAVE64 </c> instruction.
+///
+/// \param __p
+///    A pointer to a 512-byte memory region. The beginning of this memory
+///    region should be aligned on a 16-byte boundary.
+static __inline__ void __DEFAULT_FN_ATTRS
+_fxsave64(void *__p)
+{
+  return __builtin_ia32_fxsave64(__p);
+}
+
+/// \brief Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
+///    memory region pointed to by the input parameter \a __p. The contents of
+///    this memory region should have been written to by a previous \c _fxsave
+///    or \c _fxsave64 intrinsic.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the <c> FXRSTOR64 </c> instruction.
+///
+/// \param __p
+///    A pointer to a 512-byte memory region. The beginning of this memory
+///    region should be aligned on a 16-byte boundary.
+static __inline__ void __DEFAULT_FN_ATTRS
+_fxrstor64(void *__p)
+{
+  return __builtin_ia32_fxrstor64(__p);
+}
+#endif
+
+#undef __DEFAULT_FN_ATTRS
+
+#endif