Calc+ v1.0 (#189)

- Bigger fonts
- System colors
- Code refactoring to make UI flexible and more readable
- Move from ISO to IMG
- Add to main menu, add to desktop instead of Calc, remove from App+
- Localization to all system languages
- Source code file is now UTF-8

Co-authored-by: Burer <burer@kolibrios.org>
Reviewed-on: #189
Reviewed-by: Max Logaev <maxlogaev@proton.me>
Co-authored-by: Kiril Lipatov <lipatov.kiril@gmail.com>
Co-committed-by: Kiril Lipatov <lipatov.kiril@gmail.com>

data/et_EE/settings/menu.dat

@@ -80,6 +80,7 @@
 65 NDN                *  |/kolibrios/utils/ndn/ndn
 #11 **** DATA PROCESSING ****
 16 Kalkulaator           |calc
+16 Kalkulaator+          |calcplus
 16 Teksti redaktor       |tinypad
 16 CodeEdit              |develop/cedit
 16 Tabelarvutus          |table