Rename `fj-kernel` to `fj-core`

The name `fj-kernel` has become confusing. All of Fornjot is a kernel
now, and `fj-core` is just the core part of that CAD kernel.

Cargo.lock

@@ -630,8 +630,8 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "clap",
+ "fj-core",
  "fj-export",
- "fj-kernel",
  "fj-math",
  "fj-window",
  "itertools",
@@ -779,6 +779,23 @@ dependencies = [
  "simd-adler32",
 ]
 
+[[package]]
+name = "fj-core"
+version = "0.46.0"
+dependencies = [
+ "anyhow",
+ "fj-interop",
+ "fj-math",
+ "iter_fixed",
+ "itertools",
+ "parking_lot",
+ "pretty_assertions",
+ "robust 1.1.0",
+ "spade",
+ "thiserror",
+ "type-map",
+]
+
 [[package]]
 name = "fj-export"
 version = "0.46.0"
@@ -798,23 +815,6 @@ dependencies = [
  "fj-math",
 ]
 
-[[package]]
-name = "fj-kernel"
-version = "0.46.0"
-dependencies = [
- "anyhow",
- "fj-interop",
- "fj-math",
- "iter_fixed",
- "itertools",
- "parking_lot",
- "pretty_assertions",
- "robust 1.1.0",
- "spade",
- "thiserror",
- "type-map",
-]
-
 [[package]]
 name = "fj-math"
 version = "0.46.0"

Cargo.toml

@@ -1,9 +1,9 @@
 [workspace]
 resolver = "2"
 members = [
+    "crates/fj-core",
     "crates/fj-export",
     "crates/fj-interop",
-    "crates/fj-kernel",
     "crates/fj-math",
     "crates/fj-viewer",
     "crates/fj-window",
@@ -17,9 +17,9 @@ members = [
     "tools/release-operator",
 ]
 default-members = [
+    "crates/fj-core",
     "crates/fj-export",
     "crates/fj-interop",
-    "crates/fj-kernel",
     "crates/fj-math",
     "crates/fj-viewer",
 ]
@@ -42,6 +42,10 @@ categories = ["encoding", "mathematics", "rendering"]
 version = "0.46.0"
 path = "crates/fj"
 
+[workspace.dependencies.fj-core]
+version = "0.46.0"
+path = "crates/fj-core"
+
 [workspace.dependencies.fj-export]
 version = "0.46.0"
 path = "crates/fj-export"
@@ -54,10 +58,6 @@ path = "crates/fj-host"
 version = "0.46.0"
 path = "crates/fj-interop"
 
-[workspace.dependencies.fj-kernel]
-version = "0.46.0"
-path = "crates/fj-kernel"
-
 [workspace.dependencies.fj-math]
 version = "0.46.0"
 path = "crates/fj-math"

crates/fj-core/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "fj-kernel"
+name = "fj-core"
 version.workspace = true
 edition.workspace = true
 description.workspace = true

models/cuboid/Cargo.toml

@@ -12,12 +12,12 @@ itertools = "0.10.5"
 version = "4.3.0"
 features = ["derive"]
 
+[dependencies.fj-core]
+path = "../../crates/fj-core"
+
 [dependencies.fj-export]
 path = "../../crates/fj-export"
 
-[dependencies.fj-kernel]
-path = "../../crates/fj-kernel"
-
 [dependencies.fj-math]
 path = "../../crates/fj-math"
 

models/cuboid/src/lib.rs

@@ -1,4 +1,4 @@
-use fj_kernel::{
+use fj_core::{
     algorithms::sweep::Sweep,
     objects::{Sketch, Solid},
     operations::{BuildSketch, Insert},

models/cuboid/src/main.rs

@@ -1,6 +1,6 @@
 use std::{ops::Deref, path::PathBuf};
 
-use fj_kernel::algorithms::{approx::Tolerance, triangulate::Triangulate};
+use fj_core::algorithms::{approx::Tolerance, triangulate::Triangulate};
 
 fn main() -> anyhow::Result<()> {
     let args = Args::parse();

tools/cross-compiler/src/main.rs

@@ -13,18 +13,18 @@ fn main() -> anyhow::Result<()> {
     let targets = [
         Target {
             triple: "aarch64-apple-ios",
-            crates: &["fj-export", "fj-interop", "fj-kernel", "fj-math"],
+            crates: &["fj-core", "fj-export", "fj-interop", "fj-math"],
         },
         Target {
             triple: "aarch64-linux-android",
-            crates: &["fj-export", "fj-interop", "fj-kernel", "fj-math"],
+            crates: &["fj-core", "fj-export", "fj-interop", "fj-math"],
         },
         Target {
             triple: "wasm32-unknown-unknown",
             crates: &[
+                "fj-core",
                 "fj-export",
                 "fj-interop",
-                "fj-kernel",
                 "fj-math",
                 "fj-viewer",
             ],