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/compile/normal.c

@@ -0,0 +1,25 @@
+#include "compile-node.h"
+
+static const compile_node_impl node_compilers[] = {
+	[BSHELL_AST_INT] = compile_int,
+	[BSHELL_AST_DOUBLE] = compile_double,
+	[BSHELL_AST_STRING] = compile_string,
+	[BSHELL_AST_WORD] = compile_word,
+	[BSHELL_AST_OP] = compile_op,
+	[BSHELL_AST_VAR] = compile_var,
+	[BSHELL_AST_FSTRING] = compile_fstring,
+	[BSHELL_AST_ARRAY] = compile_array,
+	[BSHELL_AST_HASHTABLE] = compile_hashtable,
+	[BSHELL_AST_HASHTABLE_ITEM] = compile_hashtable_item,
+	[BSHELL_AST_CMDCALL] = compile_cmdcall,
+	[BSHELL_AST_PIPELINE] = compile_pipeline,
+	[BSHELL_AST_BLOCK] = compile_block,
+};
+static const size_t nr_node_compilers = sizeof node_compilers
+                                      / sizeof node_compilers[0];
+
+const struct compile_state_type normal_state = {
+	.s_size = sizeof(struct compile_state),
+	.s_compile_node = node_compilers,
+	.s_nr_compile_node = nr_node_compilers,
+};