refactor: namespace cleanup pass 2

- Rename driver.intf.serial -> driver.io.serial (intf/ -> io/)
- Move net protocols to driver.net.proto.* (net/ -> net/proto/)
  - arp, dhcp, eth2, icmp, ipv4, tcp, udp
- Move netdev to driver.net.dev.* (netdev/ -> net/dev/)
  - e1000
- Move driver.net.pas into driver/net/
- Move driver.video.pas into driver/video/
- Rename arch.x86.faults -> arch.x86.fault, move to fault/ dir
- Move driver.storage.ctl.ahci.pas into ctl/ahci/
- Move driver.storage.ctl.ide.pas into ctl/ide/
- Move linker.script and version to toolchain/
- Update all unit references and namespace doc

35 files changed, 237 insertions(+), 234 deletions(-)

toolchain/linker.script

@@ -0,0 +1,47 @@
+ENTRY(loader)
+SECTIONS
+{
+  . = 0xC0100000;
+  kernel_start = .;
+  .text : AT(ADDR(.text) - 0xC0000000)
+  {
+    text = .; _text = .; __text = .;
+    *(.text)
+    *(.rodata*)
+    . = ALIGN(4096);
+  }
+  .data : AT(ADDR(.data) - 0xC0000000)
+  {
+    data = .; _data = .; __data = .;
+    *(.data)
+    kimage_text = .;
+    LONG(text);
+    kimage_data = .;
+    LONG(data);
+    kimage_bss = .;
+    LONG(bss);
+    kimage_end = .;
+    LONG(end);
+    . = ALIGN(4096);
+  }
+  .bss : AT(ADDR(.bss) - 0xC0000000)
+  {
+    bss = .; _bss = .; __bss = .; _sbss = .;
+    *(COMMON)
+    *(.bss)
+    _ebbbss = .;
+    . = ALIGN(4096);
+  }
+  end = .; _end = .; __end = .;
+  kernel_end = .;
+
+  /DISCARD/ : {
+    *(.init_array*)
+    *(.fini_array*)
+    *(.ctors)
+    *(.dtors)
+    *(.eh_frame*)
+    *(.gcc_except_table*)
+    *(.note.GNU-stack)
+  }
+}