Fix 9156 endian consistency (#9873)

- fixed #9156

# Description
I'm trying to fix the problems mentioned in the issue. It's my first
attempt in Rust. Please let me know if there are any problems.

# User-Facing Changes
- The `--little-endian` option dropped, replaced with `--endian`.
- Add the `--compact` option to the `into binary` command.
- `into int` accepts binary input

crates/nu-command/tests/commands/conversions/into/int.rs

@@ -0,0 +1,25 @@
+use nu_test_support::nu;
+
+#[test]
+fn convert_back_and_forth() {
+    let actual = nu!(r#"1 | into binary | into int"#);
+    assert_eq!(actual.out, "1");
+}
+
+#[test]
+fn convert_into_int_little_endian() {
+    let actual = nu!(r#"0x[01 00 00 00 00 00 00 00] | into int --endian little"#);
+    assert_eq!(actual.out, "1");
+
+    let actual = nu!(r#"0x[00 00 00 00 00 00 00 01] | into int --endian little"#);
+    assert_eq!(actual.out, "72057594037927936");
+}
+
+#[test]
+fn convert_into_int_big_endian() {
+    let actual = nu!(r#"0x[00 00 00 00 00 00 00 01] | into int --endian big"#);
+    assert_eq!(actual.out, "1");
+
+    let actual = nu!(r#"0x[01 00 00 00 00 00 00 00] | into int --endian big"#);
+    assert_eq!(actual.out, "72057594037927936");
+}

crates/nu-command/tests/commands/conversions/into/mod.rs

@@ -0,0 +1 @@
+mod int;

crates/nu-command/tests/commands/conversions/mod.rs

@@ -0,0 +1 @@
+mod into;

crates/nu-command/tests/commands/mod.rs

@@ -8,6 +8,7 @@ mod cal;
 mod cd;
 mod compact;
 mod continue_;
+mod conversions;
 mod cp;
 mod date;
 mod def;

crates/nu-command/tests/commands/skip/skip_.rs

@@ -8,7 +8,7 @@ fn binary_skip() {
             open sample_data.ods --raw |
             skip 2 |
             take 2 |
-            into int
+            into int --endian big
         "#
     ));