Root directory content refactoring (#1725)

* Root directory refactoring: - move info about Bootup Logo from a sepatate README to main README; - replace separate root scripts build.sh and start_dev.sh by root Makefile; - make Scripts directory and move there: flash_ts100_linux.sh script, ci/ directory, dockerfile, LICENSE_RELEASE, and PULL_REQUEST_TEMPLATE; - reconfigure build & deploy scripts according to changes

* Scripts => scripts

* Scripts -> scripts: re-add missing renamed files

* Directories refactoring: add top-level Makefile, add scripts/deploy.sh script, move github templates from top-level dir to .github, organize files inside Development Resources

* Update scripts/deploy.sh accroding to codestyle syntax shellcheck

* Makefile: add docs-deploy target for mkdocs gh-deploy

* Rename IronOS.yml > Env.yml, update related files

* Docs configs: remove empty characters

* docs/devel: update usage of new script

scripts/IronOS.Dockerfile

@@ -0,0 +1,29 @@
+FROM alpine:3.16
+LABEL maintainer="Ben V. Brown <ralim@ralimtek.com>"
+
+WORKDIR /build
+# Installing the two compilers, python3, python3 pip, clang format
+# Compilders ->gcc-* newlib-*
+# Python3 -> py*
+# Misc -> findutils make git
+# musl-dev is required for the multi lang firmwares
+# clang is required for clang-format (for dev)
+ARG APK_COMPS="gcc-riscv-none-elf gcc-arm-none-eabi newlib-riscv-none-elf \
+               newlib-arm-none-eabi"
+ARG APK_PYTHON="python3 py3-pip black"
+ARG APK_MISC="findutils make git"
+ARG APK_DEV="musl-dev clang bash clang-extra-tools"
+
+# PIP packages
+ARG PIP_PKGS='bdflib'
+
+RUN apk add --no-cache ${APK_COMPS} ${APK_PYTHON} ${APK_MISC} ${APK_DEV}
+
+# Install Python3 packages
+
+RUN python3 -m pip install ${PIP_PKGS}
+# Git trust
+RUN git config --global --add safe.directory /build/source
+
+COPY . /build/source
+COPY ./scripts/ci /build/ci