Add new ESPrectro board

Author: ivankravets

boards/espectro.json

@@ -0,0 +1,25 @@
+{
+  "build": {
+    "core": "esp8266",
+    "extra_flags": "-DESP8266 -DARDUINO_ARCH_ESP8266 -DARDUINO_ESP8266_ESPECTRO",
+    "f_cpu": "80000000L",
+    "f_flash": "40000000L",
+    "flash_mode": "dio",
+    "ldscript": "esp8266.flash.4m1m.ld",
+    "mcu": "esp8266",
+    "variant": "espectro"
+  },
+  "frameworks": [
+    "arduino"
+  ],
+  "name": "ESPrectro Core",
+  "upload": {
+    "maximum_ram_size": 81920,
+    "maximum_size": 4194304,
+    "require_upload_port": true,
+    "resetmethod": "nodemcu",
+    "speed": 921600
+  },
+  "url": "https://shop.makestro.com/en/product/espectro-core/",
+  "vendor": "DycodeX"
+}

platform.json

@@ -13,7 +13,7 @@
     "type": "git",
     "url": "https://github.com/platformio/platform-espressif8266.git"
   },
-  "version": "1.0.3",
+  "version": "1.0.4-a1",
   "packageRepositories": [
     "https://dl.bintray.com/platformio/dl-packages/manifest.json",
     "https://sourceforge.net/projects/platformio-storage/files/packages/manifest.json/download",
@@ -38,7 +38,7 @@
     "framework-arduinoespressif8266": {
       "type": "framework",
       "optional": true,
-      "version": "~1.20300.0"
+      "version": "~1.20300.1"
     },
     "framework-simba": {
       "type": "framework",