[DO-982] add sqlite package (!13)

Co-authored-by: aleksandr.vodyanov <aleksandr.vodyanov@avroid.tech>
Reviewed-on: https://git.avroid.tech/Conan/conan_build/pulls/13

recipes/sqlite3/all/test_package/empty_vfs.c

@@ -0,0 +1,90 @@
+#include <sqlite3.h>
+#include <stddef.h>
+
+int empty_xOpen(sqlite3_vfs *vfs, const char *zName, sqlite3_file *f, int flags, int *pOutFlags)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+
+int empty_xDelete(sqlite3_vfs *vfs, const char *zName, int syncDir)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+
+int empty_xAccess(sqlite3_vfs *vfs, const char *zName, int flags, int *pResOut)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+
+int empty_xFullPathname(sqlite3_vfs *vfs, const char *zName, int nOut, char *zOut)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+int empty_xRandomness(sqlite3_vfs *vfs, int nByte, char *zOut)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+int empty_xSleep(sqlite3_vfs *vfs, int microseconds)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+int empty_xCurrentTime(sqlite3_vfs *vfs, double *t)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+int empty_xGetLastError(sqlite3_vfs *vfs, int code, char *name)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+int empty_xCurrentTimeInt64(sqlite3_vfs *vfs, sqlite3_int64 *t)
+{
+    // TODO: implement
+    return SQLITE_OK;
+}
+
+// empty VFS will be provided
+int sqlite3_os_init(void)
+{
+    static sqlite3_vfs emptyVFS =
+    {
+        2, /* iVersion */
+        0, /* szOsFile */
+        100, /* mxPathname */
+        NULL, /* pNext */
+        "empty", /* zName */
+        NULL, /* pAppData */
+        empty_xOpen, /* xOpen */
+        empty_xDelete, /* xDelete */
+        empty_xAccess, /* xAccess */
+        empty_xFullPathname, /* xFullPathname */
+        NULL, /* xDlOpen */
+        NULL, /* xDlError */
+        NULL, /* xDlSym */
+        NULL, /* xDlClose */
+        empty_xRandomness, /* xRandomness */
+        empty_xSleep, /* xSleep */
+        empty_xCurrentTime, /* xCurrentTime */
+        empty_xGetLastError, /* xGetLastError */
+        empty_xCurrentTimeInt64, /* xCurrentTimeInt64 */
+        NULL, /* xSetSystemCall */
+        NULL, /* xGetSystemCall */
+        NULL, /* xNextSystemCall */
+    };
+
+    sqlite3_vfs_register(&emptyVFS, 1);
+
+    return SQLITE_OK;
+}
+
+int sqlite3_os_end(void)
+{
+    return SQLITE_OK;
+}