feat(mean_field): added dimensions, discritization, and start of eos

The full rewrite of mean_field into something maintainable is progressing. dimensions is mostly done, discritization (domain, blocks, and fields) is done, and eos is progressing quickly

src/include/serif/discretization/blocks/base.hpp

@@ -0,0 +1,48 @@
+#pragma once
+
+namespace serif::discretization::blocks {
+    inline constexpr int DYNAMIC_BLOCK_SIZE = -1;
+
+    struct block {};
+
+    struct residual_block_base : block {
+        static constexpr int static_block_size = DYNAMIC_BLOCK_SIZE;
+    };
+
+    struct value_block_base : block {
+        static constexpr int static_block_size = DYNAMIC_BLOCK_SIZE;
+    };
+
+    template <typename GeneratedValue>
+    struct generated_value_block final : value_block_base {
+        using GeneratedType = GeneratedValue;
+        static constexpr int static_block_size = static_cast<int>(GeneratedValue::scalarArity);
+    };
+
+    template <typename GeneratedResidual>
+    struct generated_residual_block final : residual_block_base {
+        using GeneratedType = GeneratedResidual;
+        static constexpr int static_block_size = static_cast<int>(GeneratedResidual::scalarArity);
+    };
+
+    template <int index_value>
+    struct residual_block final : residual_block_base {
+        static constexpr int index = index_value;
+
+        // ReSharper disable once CppNonExplicitConversionOperator
+        constexpr operator int() const noexcept {
+            return index;
+        }
+    };
+
+    template <int index_value>
+    struct value_block final : value_block_base {
+        static constexpr int index = index_value;
+
+        // ReSharper disable once CppNonExplicitConversionOperator
+        constexpr operator int() const noexcept {
+            return index;
+        }
+    };
+
+}

src/include/serif/discretization/blocks/concepts.hpp

@@ -0,0 +1 @@
+#pragma once

src/include/serif/discretization/blocks/fields.hpp

@@ -0,0 +1,65 @@
+#pragma once
+
+#include "base.hpp"
+#include "serif/discretization/blocks/base.hpp"
+
+namespace serif::discretization::blocks {
+    struct field {};
+    struct term {};
+
+    struct density final : field {
+        struct mass final : term {
+            struct value final : value_block_base {};
+            struct residual final : residual_block_base {};
+        };
+
+        static inline constexpr mass mass_term{};
+    };
+
+    struct displacement final : field {
+        struct geometry final : term {
+            struct value final : value_block_base {};
+            struct residual final : residual_block_base {};
+        };
+
+        static inline constexpr geometry geometry_term{};
+    };
+
+    struct surface_deformation final : field {
+        struct parameters final : term {
+            struct value final : value_block_base {};
+        };
+
+        struct shape_equilibrium final : term {
+            struct residual final : residual_block_base {};
+        };
+
+        static inline constexpr parameters parameters_term{};
+        static inline constexpr shape_equilibrium shape_equilibrium_term{};
+    };
+
+    struct gravity final : field {
+        struct gradient final : term {
+            struct value final : value_block_base {};
+            struct residual final : residual_block_base {};
+        };
+
+        struct potential final : term {
+            struct value final : value_block_base {};
+            struct residual final : residual_block_base {};
+        };
+
+        static inline constexpr potential potential_term{};
+        static inline constexpr gradient gradient_term{};
+    };
+
+    struct enthalpy final : field {
+        struct specific final : term {
+            struct value final : value_block_base { };
+            struct residual final : residual_block_base { };
+        };
+
+        static inline constexpr specific specific_term{};
+    };
+
+}

src/include/serif/discretization/blocks/rows.hpp

@@ -0,0 +1 @@
+#pragma once

src/include/serif/discretization/blocks/traits.hpp

@@ -0,0 +1 @@
+#pragma once