core+system+boot: Move all boot modules into the astryon/ subfolder and add that to .gitignore

Accidentally committed the memory binary as I forgot to add it to gitignore. Let's not do this in the future.

.gitignore

@@ -1,6 +1,6 @@
 **/.zig-cache
 boot/core
-boot/init
+boot/astryon/**
 tools/bin/
 tools/include/
 tools/share/

boot/easyboot/menu.cfg

@@ -4,5 +4,5 @@ default 1 1000
 
 menuentry Astryon default
     kernel core
-    module init
-    module memory
+    module astryon/init
+    module astryon/memory

core/src/main.zig

@@ -88,8 +88,8 @@ export fn main(magic: u32, info: MultibootInfo) callconv(.C) noreturn {
             const stack = try elf.allocateStack(context.allocator, space, base - platform.PAGE_SIZE, default_stack_size);
             thread.arch.setStack(&module.regs, stack);
 
-            const init_name = "init";
-            if (std.mem.eql(u8, init_name[0..init_name.len], mod.string()[0..init_name.len])) context.init = module;
+            const init_path = "astryon/init";
+            if (std.mem.eql(u8, init_path[0..init_path.len], mod.string()[0..init_path.len])) context.init = module;
         }
 
         fn handler(mod: *easyboot.multiboot_tag_module_t, context: *anyopaque) void {

system/init/build.zig

@@ -33,7 +33,7 @@ pub fn buildAsSubmodule(b: *std.Build, build_step: *std.Build.Step, optimize: st
 
     const install = b.addInstallArtifact(init, .{
         .dest_dir = .{
-            .override = .{ .custom = "boot/" },
+            .override = .{ .custom = "boot/astryon/" },
         },
     });
 

system/memory/build.zig

@@ -33,7 +33,7 @@ pub fn buildAsSubmodule(b: *std.Build, build_step: *std.Build.Step, optimize: st
 
     const install = b.addInstallArtifact(memory, .{
         .dest_dir = .{
-            .override = .{ .custom = "boot/" },
+            .override = .{ .custom = "boot/astryon/" },
         },
     });