Add DType, Tensor & friends to providers crate

Author: ihincks

Cargo.lock

@@ -9,10 +9,17 @@ license.workspace = true
 name = "qiskit_providers"
 
 [dependencies]
+rustworkx-core.workspace = true
+anyhow.workspace = true
+num-complex.workspace = true
 
 [dependencies.hashbrown]
 workspace = true
 features = ["rayon", "serde"]
 
 [lints]
 workspace = true
+
+[dependencies.ndarray]
+workspace = true
+features = ["rayon", "approx"]

crates/providers/Cargo.toml

@@ -11,5 +11,5 @@
 // that they have been altered from the originals.
 
 mod data_tree;
-
+pub mod tensor;
 pub use data_tree::{DataTree, PathEntry};