Implement the .incbin control statement

This also forced us to add the current working directory to the
`Assembler::assemble` public function, as otherwise this control
statement and others wouldn't know how to resolve relative paths.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/xixanta/src/node.rs b/lib/xixanta/src/node.rs
index 993d9c1..bab9420 100644
--- a/lib/xixanta/src/node.rs
+++ b/lib/xixanta/src/node.rs
@@ -137,6 +137,7 @@ pub enum ControlType {
     Byte,
     Word,
     Addr,
+    IncBin,
 }
 
 /// The PNode type.