feat: add SCF format library and rename components to SCC prefix

- Introduce new SCF (SCC Format) library with header, implementation, and test files
- SCF is a minimal executable/linkable format focused on internal linking with external symbol import/export abstraction
- Rename lexer and lex_parser packages from 'smcc_' to 'scc_' prefix for consistency
- Update hashmap implementation to use 'scc_' prefix for types and structures
- Add build configuration for new format library with dependencies on libcore and libutils

runtime/libutils/src/strpool.c

@@ -1,13 +1,13 @@
 #include "strpool.h"
 
-void init_strpool(strpool_t *pool) {
+void scc_strpool_init(scc_strpool_t *pool) {
     pool->ht.hash_func = (u32 (*)(const void *))scc_strhash32;
     pool->ht.key_cmp = (int (*)(const void *, const void *))scc_strcmp;
-    hashmap_init(&pool->ht);
+    scc_hashtable_init(&pool->ht);
 }
 
-const char *strpool_intern(strpool_t *pool, const char *str) {
-    void *existing = hashmap_get(&pool->ht, str);
+const char *scc_strpool_intern(scc_strpool_t *pool, const char *str) {
+    void *existing = scc_hashtable_get(&pool->ht, str);
     if (existing) {
         return existing;
     }
@@ -20,8 +20,13 @@ const char *strpool_intern(strpool_t *pool, const char *str) {
     }
     scc_memcpy(new_str, str, len);
 
-    hashmap_set(&pool->ht, new_str, new_str);
+    scc_hashtable_set(&pool->ht, new_str, new_str);
     return new_str;
 }
 
-void strpool_destroy(strpool_t *pool) { hashmap_drop(&pool->ht); }
+void scc_strpool_drop(scc_strpool_t *pool) { scc_hashtable_drop(&pool->ht); }
+
+void scc_strpool_foreach(scc_strpool_t *pool, scc_strpool_iter_fn iter_func,
+                         void *context) {
+    scc_hashmap_foreach(&pool->ht, (scc_hashtable_iter_fn)iter_func, context);
+}