🩹 fixes for noise-aware simulation in DDSIM (#551)

## Description

This PR contains a couple of fixes for the noise-aware simulation
techniques currently being reworked in cda-tum/mqt-ddsim#321.

More precisely, this PR makes sure that the corresponding DD package
configs are already defined in the mqt-core library and that explicit
instantiations for the methods relevant for DDSIM are in place.

## Checklist:

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- [x] The pull request only contains commits that are related to it.
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---------

Signed-off-by: burgholzer <[email protected]>

include/mqt-core/dd/DDpackageConfig.hpp

@@ -1,5 +1,7 @@
 #pragma once
 
+#include "operations/OpType.hpp"
+
 #include <cstddef>
 
 namespace dd {
@@ -25,8 +27,36 @@ struct DDPackageConfig {
   static constexpr std::size_t CT_DM_ADD_NBUCKET = 1U;
 
   // The number of different quantum operations. I.e., the number of operations
-  // defined in the QFR OpType.hpp This parameter is required to initialize the
+  // defined in OpType.hpp. This parameter is required to initialize the
   // StochasticNoiseOperationTable.hpp
   static constexpr std::size_t STOCHASTIC_CACHE_OPS = 1;
 };
+
+struct StochasticNoiseSimulatorDDPackageConfig : public dd::DDPackageConfig {
+  static constexpr std::size_t STOCHASTIC_CACHE_OPS = qc::OpType::OpCount;
+};
+
+struct DensityMatrixSimulatorDDPackageConfig : public dd::DDPackageConfig {
+  static constexpr std::size_t UT_DM_NBUCKET = 65536U;
+  static constexpr std::size_t UT_DM_INITIAL_ALLOCATION_SIZE = 4096U;
+
+  static constexpr std::size_t CT_DM_DM_MULT_NBUCKET = 16384U;
+  static constexpr std::size_t CT_DM_ADD_NBUCKET = 16384U;
+  static constexpr std::size_t CT_DM_NOISE_NBUCKET = 4096U;
+
+  static constexpr std::size_t UT_MAT_NBUCKET = 16384U;
+  static constexpr std::size_t CT_MAT_ADD_NBUCKET = 4096U;
+  static constexpr std::size_t CT_VEC_ADD_NBUCKET = 4096U;
+  static constexpr std::size_t CT_MAT_CONJ_TRANS_NBUCKET = 4096U;
+
+  static constexpr std::size_t CT_MAT_MAT_MULT_NBUCKET = 1U;
+  static constexpr std::size_t CT_MAT_VEC_MULT_NBUCKET = 1U;
+  static constexpr std::size_t UT_VEC_NBUCKET = 1U;
+  static constexpr std::size_t UT_VEC_INITIAL_ALLOCATION_SIZE = 1U;
+  static constexpr std::size_t UT_MAT_INITIAL_ALLOCATION_SIZE = 1U;
+  static constexpr std::size_t CT_VEC_KRON_NBUCKET = 1U;
+  static constexpr std::size_t CT_MAT_KRON_NBUCKET = 1U;
+  static constexpr std::size_t CT_VEC_INNER_PROD_NBUCKET = 1U;
+  static constexpr std::size_t STOCHASTIC_CACHE_OPS = 1U;
+};
 } // namespace dd