Restrict nexuscpp dependency to version 3 to avoid using the latest major...

Restrict nexuscpp dependency to version 3 to avoid using the latest major version 4 for Windows 7 MSVC12 due to hdf5 incompatibility

conanfile.py

@@ -24,6 +24,6 @@ class PulseCountingRecipe(ConanFile):
         self.requires("ni660xsl/[>=1.0]@soleil/stable")
         self.requires("ace/[>=1.0]@soleil/stable")
         self.requires("yat4tango/[>=1.0]@soleil/stable")
-        self.requires("nexuscpp/[>=1.0]@soleil/stable")
+        self.requires("nexuscpp/[>=3 <4]@soleil/stable")
         if self.settings.os == "Linux":
             self.requires("crashreporting2/[>=1.0]@soleil/stable")