YT-19210: expose YQL shared library for YT.

After this, a new target libyqlplugin.so appears. in open-source cmake build.
Diff in open-source YDB repo looks like the following: https://paste.yandex-team.ru/f302bdb4-7ef2-4362-91c7-6ca45f329264

1 files changed, 19 insertions, 0 deletions

diff --git a/yt/cpp/mapreduce/interface/client.cpp b/yt/cpp/mapreduce/interface/client.cpp
new file mode 100644
index 0000000000..11d308b809
--- /dev/null
+++ b/yt/cpp/mapreduce/interface/client.cpp
@@ -0,0 +1,19 @@
+#include "client.h"
+
+namespace NYT {
+
+////////////////////////////////////////////////////////////////////////////////
+
+void ILock::Wait(TDuration timeout)
+{
+    return GetAcquiredFuture().GetValue(timeout);
+}
+
+void ITransaction::Detach()
+{
+    Y_FAIL("ITransaction::Detach() is not implemented");
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT