MAINT: Rename directories for misc and tests in the root

Reorganize the repo a bit by just renaming.

We have a bunch of subdirectories for tests, name them all xtest- (for
package-external test) so that they line up in directory listing. The
images we keep around for docs we put in the directory misc/.

Author: bluss

Cargo.toml

@@ -80,8 +80,8 @@ matrixmultiply-threading = ["matrixmultiply/threading"]
 debug = true
 
 [workspace]
-members = ["ndarray-rand", "serialization-tests", "blas-tests"]
-exclude = ["numeric-tests"]
+members = ["ndarray-rand", "xtest-serialization", "xtest-blas"]
+exclude = ["xtest-numeric"]
 
 [package.metadata.release]
 no-dev-version = true

docgen/images/axis_iter.svg renamed to misc/axis_iter.svg

@@ -14,8 +14,8 @@ cargo build --verbose --features "$FEATURES"
 cargo test --verbose --features "$FEATURES"
 cargo test --manifest-path=ndarray-rand/Cargo.toml --no-default-features --verbose
 cargo test --manifest-path=ndarray-rand/Cargo.toml --features quickcheck --verbose
-cargo test --manifest-path=serialization-tests/Cargo.toml --verbose
-cargo test --manifest-path=blas-tests/Cargo.toml --verbose
+cargo test --manifest-path=xtest-serialization/Cargo.toml --verbose
+cargo test --manifest-path=xtest-blas/Cargo.toml --verbose
 cargo test --examples
-CARGO_TARGET_DIR=target/ cargo test --manifest-path=numeric-tests/Cargo.toml --verbose
+CARGO_TARGET_DIR=target/ cargo test --manifest-path=xtest-numeric/Cargo.toml --verbose
 ([ "$CHANNEL" != "nightly" ] || cargo bench --no-run --verbose --features "$FEATURES")

docgen/images/split_at.svg renamed to misc/split_at.svg

@@ -10,5 +10,5 @@ TARGET=$3
 cross build -v --features="$FEATURES" --target=$TARGET
 cross test -v --no-fail-fast --features="$FEATURES" --target=$TARGET
 cross test -v --no-fail-fast --target=$TARGET --manifest-path=ndarray-rand/Cargo.toml --features quickcheck
-cross test -v --no-fail-fast --target=$TARGET --manifest-path=serialization-tests/Cargo.toml --verbose
-CARGO_TARGET_DIR=target/ cross test -v --no-fail-fast --target=$TARGET --manifest-path=numeric-tests/Cargo.toml
+cross test -v --no-fail-fast --target=$TARGET --manifest-path=xtest-serialization/Cargo.toml --verbose
+CARGO_TARGET_DIR=target/ cross test -v --no-fail-fast --target=$TARGET --manifest-path=xtest-numeric/Cargo.toml