Claudine/improve fonts 5 (#2784)

* espresso kOR left to right

* espresso for right to  left

* espresso tiny

* espresso KOR

add ÉÈÊË to espressos right to left

* excalibur

* suite

* exalibur

 rungs

* excalibur

now troubleshooting is happy

* excalibur

force lock stitch and jumps

* excalinur

allow to reduce down to 50% (after testing)

* glacial left to right

* excalibur

add rung to satin with none

* glacial

add rungs  to column without rungs even if same node numbers

* excalibur

add rungs to no rung satin colums even if same number of nodes

* espresso both ways

make sure all satin have rungs

* Update font.json

add a warning about preferences minimum stitch length

fonts/espresso_tiny/font.json

@@ -1,6 +1,6 @@
 {
     "name": "Espresso tiny",
-    "description": "This font is an altered version  of Espresso KOR, to allow a greater scaling down. The use of both  thin thread (60) and thin needle (60) is mandatory. The altered embroidery parameters of this font allow to scale down the original Espresso font between 25% (for a 5mm font ) and 55 % (for a 11mm font).",
+    "description": "This font is an altered version  of Espresso KOR, to allow a greater scaling down. The use of both  thin thread (60) and thin needle (60) is mandatory. The altered embroidery parameters of this font allow to scale down the original Espresso font between 25% (for a 5mm font ) and 55 % (for a 11mm font). You may need to decrease the minimum stitch length in preferences to use this font at its smallest size",
     "keywords": [
         "sans_serif",
         "tiny"

fonts/excalibur_KOR/font.json

@@ -1,6 +1,6 @@
 {
     "name": "Excalibur KOR",
-    "description": "Excalibur KOR is a small satin column manuscript font of size approximatively 20mm. It can be reduced down to 80% and enlarged up to 140%. It contains 144 glyphs, covering most western European languages needs.",
+    "description": "Excalibur KOR is a small satin column manuscript font of size approximatively 20mm. It can be reduced down to 50% and enlarged up to 140%. It contains 144 glyphs, covering most western European languages needs.",
     "keywords": [
         "sans_serif"
     ],
@@ -9,7 +9,7 @@
     "reversible": false,
     "letter_case": "",
     "default_glyph": "<22>",
-    "min_scale": 0.8,
+    "min_scale": 0.5,
     "max_scale": 1.4,
     "size": 20,
     "horiz_adv_x_default": 40,

fonts/glacial_tiny/font.json

@@ -1,6 +1,6 @@
 {
     "name": "Glacial Tiny 60 AGS",
-    "description": "Glacial is a very tiny font: at 100%,  M stands at 5.6mm. Thin thread (60 wt ) and thin needle (8/60) are mandatory. The glyphs cover many European languages. It can be reduced down to 40% and enlarged up to 150% ",
+    "description": "Glacial is a very tiny font: at 100%,  M stands at 5.6mm. Thin thread (60 wt ) and thin needle (8/60) are mandatory. The glyphs cover many European languages. It can be reduced down to 40% and enlarged up to 150%. You may need to decrease the minimum stitch length in preferences to use this font at its smallest size",
     "keywords": [
         "sans_serif",
         "tiny"
@@ -474,7 +474,7 @@
         "%": 25,
         "‰": 37,
         "◊": 15,
-        "@": 33,
+        "@": 28,
         "&": 23,
         "©": 28,
         "°": 9,