Support for http mode

[DylanBergmann2502]

Netclient hard codes "https://" for all api calls. That default is very good in production environment but we embed netclient as a part of our toolings and for local development, we have to patch the netclient itself like this for all services that use it:

# Build netclient with HTTP patches (for local development)
FROM golang:1.25-alpine AS netclient-builder

# Define version inside the build stage
ARG NETCLIENT_VERSION=v1.4.0

# Install git
RUN apk add --no-cache git

# Clone the netclient repository and checkout specific version
WORKDIR /build
RUN git clone https://github.com/gravitl/netclient.git . && \
    git checkout ${NETCLIENT_VERSION}

# Patch ONLY API-related https:// to http:// (surgical patches for local dev)
# Using find to apply patches to all relevant files
RUN find . -type f -name '*.go' -exec sed -i \
    -e 's|"https://" + server\.API|"http://" + server.API|g' \
    -e 's|"https://" + serverData\.Server|"http://" + serverData.Server|g' \
    -e 's|"https://" + api|"http://" + api|g' \
    -e 's|fmt\.Sprintf("https://%s/|fmt.Sprintf("http://%s/|g' \
    {} \;

# Build the patched netclient
RUN go mod download && \
    CGO_ENABLED=0 GOOS=linux go build -o netclient .

Not sure why netmaker team doesn't support http at least by an env/flag or something. I guess you guys have your own reasons. But We would love to actually have the official support from you guys instead of having to do it like this.