string_find renamed to string_pos + header update

- Renamed get_clamped to math_clamp for consistency (libs should use namespace prefixes)
- Nuked above/below macros and renamed unsigned_comp to insigned_int_compare, because it doesn't work with floats
- Replaced sprintf2 and string_pos with macros (due to new metarules)
- Add a few entries to functions.yml

artifacts/scripting/functions.yml

@@ -599,7 +599,7 @@
     opcode: 0x8212
 
 - name: Math
-  parent: Variables
+  parent: Utility
   items:
   - name: log
     detail: float log(float x)
@@ -1068,7 +1068,7 @@
       `fixedParam`: the value that is passed to the `timed_event_p_proc` procedure for the `fixed_param` function
     macro: sfall.h
 
-- name: Variables
+- name: Utility
   items:
   - name: sprintf
     detail: string sprintf(string format, any value)
@@ -1088,7 +1088,7 @@
     opcode: 0x8238
 
 - name: Strings
-  parent: Variables
+  parent: Utility
   items:
   - name: string_split
     detail: array string_split(string text, split)
@@ -1116,12 +1116,28 @@
       (DEPRECATED) Returns a pointer to a string variable or to a text
       - __NOTE:__ this function is intended for use only in `HOOK_DESCRIPTIONOBJ`. Starting from sfall 4.4/3.8.40, you can return normal strings directly in the hook without calling the function
     macro: sfall.h
+  - name: string_pos
+    detail: string string_pos(string haystack, string needle)
+    doc: Returns position of a first occurance of a needle string in a haystack string, or -1 if not found.
+    macro: sfall.h
+  - name: string_pos_from
+    detail: string string_pos_from(string haystack, string needle, int pos)
+    doc: Returns position of a first occurance of a needle string in a haystack string (starting from a given 0-based position), or -1 if not found.
+    macro: sfall.h
   - name: string_format
     detail: string string_format(string format, any val1, any val2, ...)
     doc: |
       Formats given values using standard syntax of C `printf` function (google "printf" for format details). However, it is limited to formatting up to 7 values.
       - The format string is limited to 1024 characters
     macro: sfall.h
+  - name: string_format_array
+    detail: string string_format_array(string format, int array)
+    doc: The same as string_format, but accepts an array of parameters.
+    macro: lib.strings.h
+  - name: string_replace
+    detail: string string_replace(string str, string search, string replace)
+    doc: Replaces all occurances of a given search string in a string with a given replacement string.
+    macro: lib.strings.h
   - name: string_to_case
     detail: string sfall_func2("string_to_case", string text, int toCase)
     doc: |