[styles] Added icons for tower and masts

Signed-off-by: Yannik Bloscheck <git@yannikbloscheck.com>

data/styles/default/light/symbols/flagpole-m.svg

@@ -0,0 +1 @@
+<svg height="18" viewBox="0 0 18 18" width="18" xmlns="http://www.w3.org/2000/svg"><path d="m8 5.75c.27614237 0 .5.22385763.5.5 0 .14983281-.06590519.28427263-.17030802.37591193l.00030802 7.72408807.49.65h-1.64l.48924039-.65v-7.72502785c-.1037843-.09161737-.16924039-.22565072-.16924039-.37497215 0-.27614237.22385763-.5.5-.5zm2.7451777 1c.3435562 0 .678497.06666667 1.0048223.2v2.05c-.0107068-.16666667-.3456475-.25-1.0048223-.25-.3266293 0-.6642261.23417241-.9951777.275-.22463073.0277114-.55796406-.03062193-1-.175v-2c.47825318.14281471.81158651.20114804 1 .175.4588538-.06367978.7825713-.275.9951777-.275z" fill="#747e86" fill-rule="evenodd"/></svg>

data/styles/default/light/symbols/mast-m.svg

@@ -1,4 +1 @@
-<svg viewBox="0 0 5 5" width="4" height="4" fill="none" xmlns="http://www.w3.org/2000/svg">
-<circle cx="2.5" cy="2.5" r="2.2" stroke="#747E86" stroke-width="0.6"/>
-<circle cx="2.5" cy="2.5" r="1" fill="#747E86"/>
-</svg>
+<svg height="18" viewBox="0 0 18 18" width="18" xmlns="http://www.w3.org/2000/svg"><path d="m9.43 4 .24 9.9542414 1.29 1.0457586h-3.92l1.28751729-1.0457586.24514286-9.9542414z" fill="#747e86" fill-rule="evenodd"/></svg>

data/styles/default/light/symbols/pole-m.svg

@@ -0,0 +1,4 @@
+<svg viewBox="0 0 5 5" width="4" height="4" fill="none" xmlns="http://www.w3.org/2000/svg">
+<circle cx="2.5" cy="2.5" r="2.2" stroke="#747E86" stroke-width="0.6"/>
+<circle cx="2.5" cy="2.5" r="1" fill="#747E86"/>
+</svg>

data/styles/default/light/symbols/tower-m.svg

@@ -0,0 +1 @@
+<svg height="18" viewBox="0 0 18 18" width="18" xmlns="http://www.w3.org/2000/svg"><path d="m9.67733997 4 .08566003 3.5h.737v1h-.712l.13448283 5.4542414 1.28751717 1.0457586h-4.42l1.28751729-1.0457586.13348271-5.4542414h-.711v-1h.736l.08666015-3.5z" fill="#747e86" fill-rule="evenodd"/></svg>