Change slice functions to have proper naming

TODO.md

@@ -1,3 +1,2 @@
 # TODO
-Change all string slice functions to start with lz_slc
+Make examples for slc and sb atoi,atof,atol, and atoll
-

examples/string_split.c

@@ -12,7 +12,7 @@ int main() {
   Lz_Slc word;
   int i = 0;
   do {
-    lz_split_slc_typ(&s, isnotalpha, &word);
+    lz_slc_split_typ(&s, isnotalpha, &word);
     printf("Word %d: "LZ_STR_FMT"\n", i, LZ_STR_PRINTF(word));
     ++i;
   } while(s.cnt != 0);

examples/string_trim.c

@@ -8,7 +8,7 @@ int main() {
   Lz_Slc s = lz_cstr_to_slc(src);
 
   printf("|"LZ_STR_FMT"|\n", LZ_STR_PRINTF(s));
-  lz_trim_typ(&s, isspace);
+  lz_slc_trim_typ(&s, isspace);
   printf("|"LZ_STR_FMT"|\n", LZ_STR_PRINTF(s));