bshell: re-organise build into three separate components

bshell: the front-end binary
bshell.runtime: contains the parser, compiler, and classes needed to run bshell scripts
bshell.core: contains the builtin commandlets and aliases

bshell.runtime/format/format.c

@@ -0,0 +1,28 @@
+#include <bshell/format.h>
+#include <fx/term/print.h>
+#include <fx/type.h>
+#include <fx/value-type.h>
+
+static void format_value_fallback(const fx_value *value, fx_stream *dest)
+{
+	fx_printf("[yellow]");
+	fx_value_to_string(value, dest, NULL);
+	fx_printf("[reset]\n");
+}
+
+enum bshell_status format_value_default(const fx_value *value, fx_stream *dest)
+{
+	if (fx_type_is_value_type(value->v_type)) {
+		format_value_fallback(value, dest);
+		return BSHELL_SUCCESS;
+	}
+
+	fx_object *object = NULL;
+	fx_value_get_object(value, &object);
+	enum bshell_status status = format_object_table(object, dest);
+	if (status != BSHELL_SUCCESS) {
+		format_value_fallback(value, dest);
+	}
+
+	return BSHELL_SUCCESS;
+}